Sounds fine. Sword and Board is always a solid choice. As a Tank the Feats I would work to get: Dodge, Mobility, Combat Expertise, Spring Attack, Whirlwind Attack. This means you need at least Dex 13 and Int 13 as well as the high Str and Con you normally expect for a Fighter. You want him to get under the enemy's guard without causing an AoO. Helpful skills: Intimidate (Cha), Bluff (Cha), Tumble (Dex), Use Magic Item (Cha). Ok, when I see "uses more Dex than Con" I assume you are thinking about the feat Weapons Finesse? Just be aware that WF only works if you fight with "Light" weapons or a rapier (see in-game help for exact list of weapons). Also be aware that any -Str penalty will still apply to damage, even if you are using WF (so you can't use Str as a dump stat). You obviously want Two-Weapon Fighting, and probably Combat Reflexes. However here's the catch: 2-WF still leaves you with a -2 and -6 attack penalty, which is huge! However, if instead you wield a 2-handed weapon, you incur no penalty AND get 150% damage bonus! Considering that the Greatsword does 2d6 damage x 150% that is better than your double rapier attack and you have a chance to actually hit your target. Add to that pole weapons rule the battlefield in this game with their AoO, and I think you will do better with a fighter that specializes in pole weapons or 2-handed weapons, rather than 2-WF. Just my opinion. Just make sure to start her off with Point Blank Shot and Precise Shot for her feats, or she won't hit very often anything that isn't caught flatfooted. I know it sounds crazy, but that's the problem with Rangers in ToEE: they only start with 1 feat pick. SO for your dedicated archer, you are actually better off with a Human fighter (3 picks) or Human ranger (2 picks) rather than an Elf ranger (only 1 pick - doesn't make sense does it). Elemental, Evil Outsider, or Goblinoid works well in ToEE as your feature enemy. I would definitely consider a pole-weapon as her secondary.

Good skills: Survival, Spot, Listen, Hide, Move Silently - these will make a BIG difference as to whether you get ganked by wandering monsters on the road or not. Heal is also good if you have a First Aid Kit, to stabilize anyone dying from a wound (if your Clerics are preoccupied). Ditto concerning 2-WF and PBS/PS for bows. Sneak attacks work best combined with Trip attacks or Bluff attacks. High Int is very good on a thief, so they get a bonus to their Appraise skill, which helps for selling stuff. This also opens the possibility to have a Thief dual 1 level of Wizard, so they get a Familiar and can read/write magic scrolls (and sell them for profit). Wait a few levels, then maximize your Spellcasting and Use Magic Item skills, and your Wiz 1 will be able to copy ANY level arcane scroll to their spellbook (with stacked Scholar Kits) AND scribe the scroll AND use it in battle. The Deity of your cleric is really important. Your cleric can eventually become your best weapon-forger, and his faith determines what types of uber-killer-buffs he can imbue a weapon with. I'm fairly certain Domain:Law and Domain:Good and Domain:Sun give the most useful buffs to fight certain demons and such.

In any case, having the Scribe Scroll feat means you can take a backpack full of healing scrolls, and thus leave your memorized spells for other uses. Sounds a lot like a Druid, in which case your primaries would be Cha and Dex. Extend Spell might be an interesting feat, as your summons will stay twice as long for only 1-level higher. Imo, you are putting all your eggs in one basket by focusing both spellcasters in Evocation. You are going to meet some tough mobs with all sorts of different magic immunities in ToEE, so you want a basketfull of different types of spells to cast. Often times charming or disabling the monster or massively debuffing it are more effective that trying to chip away at its HP. Sometimes their MR is so high the only way is to massively buff your fighters. SO you don't want to ignore the other schools.

You want your WIzard to have high Int and Dex, while the Sorcerer should have high Cha and Dex. Why? Int and Cha affect the DC saving throws, and Dex is used for most touch attack spells (which btw don't allow saving throws) so it is very useful. Ranged touch attack spells count as "missile weapons", so once again Point Blank Shot and Precise Shot are necessary to have a chance to hit if you use those spells. I'm fairly certain that Weapons Finesse also gives a bonus for melee touch attack spells, if your in-hand weapon qualifies (recommend save game before level-up to confirm).

Hope this helps.