UniversalWolf: If you're going to go the Explosives route, I say do it all the way. The higher level grenade weapons are amazingly fun. Concussion grenades, tranquilizer grenades, electro grenades...you have a huge array of items to choose from. As others have mentioned, that's before you even get to planted explosives, which can also be used to blow up doors and windows and other such things...
Your skill in other tech colleges will determine whether or not you can build some of these. Buy lots of manuals.
It won't be hard, because Explosives experts are the best money-earners in the game, with wealth generation skills challenged only by master thieves. You should be richer than Gilbert Bates by the end because, unlike him, you can transmute garbage into money.
As for other thrown weapons for tech characters...well, I hesitate to mention it, but there
is one mysterious weapon known only as...The Aerial Decapitator. But no, I shouldn't have said anything. It's probably only a legend...
Well, thanks. As if I haven't started up enough new games and done nothing with them now I gotta make a throwing tech guy. XD