It's on GamersGate so you can basically ignore the limits.

Impulse
CID The Dummy $3.49
Out of the Park 11 $19.99
Skyscraper Simulator $16.34 ( Impulse::Reactor )
Lost Planet Extreme Condition - Colonies Edition $9.99 Worldwide (Excluding Japan/Korea)
Tom Clancy's EndWar $9.99 North America (US and Canada) , TAGES - 3 Activation Limit

Steam racing day sees:
NFS Shift - 25% off
NFS Undercover - 50% off
Burnout Paradise - 75% off

US Prices:
Burnout Paradise - $7.50
NFS Undercover - $5
NFS Shift - $22.50
Ban-sama:
Why is it that Steam/Impulse/whatever prices differ in Japan?

Steam version of NFS Undercover has no working online multiplayer apparently.
I might have picked that one up. Burnout is a good price tho !

European Prices (tier2):
NFS Shift - 22,49€
NFS Undercover - 9,99€
Burnout Paradise - 3,74€
Burnout bought...

Might as well wait for World, which is free and has only online MP if I understand correctly.

I got Undercover via way of gifting around the regional restriction. Been having a blast with it. But then, I couldn't care less about the multiplayer, I just like winding the police up =)
Why is it that Steam/Impulse/whatever prices differ in Japan?
Very few prices differ in Japan to the US on Steam. And as far as I know, only Kalypso Media games are priced higher in Japan then the US on Impulse (although until recently, it's been hard for me to track their pricing).
The problem for us is not so much the digital distribution pricing of games here, it's the fact that we can't buy most of them.
When you can find PC games retail here though, they are sold at what's termed an "open price"; basically the publisher doesn't even bother setting a price which allows the stores to charge whatever they want. Which tends to be in the region of 80 to 100 USD per game.
Undercover for example, can be purchased here via the EA store (or retail if you're lucky to find a store stocking PC games and which happens to have it ) for around $73.

not a real deal,but BFG just released Cleopatra: A Queen's Destiny for $6.99
edit:
Casebook SE.
http://www.casebookthegame.com/

Hmm, sounds like they are taking the Nadeo/TrackMania approach - give base game away for free, then charge for extras/DLC. If you haven't tried TrackMania, I recommend it. It is less free form racing and more start to finish track racing, although some of the tracks are a bit 'tricky' to say the least. Physics in the game is top-notch, also. It is pretty playable from the keyboard - driving wheel/pedals not required.
I found out about it via the open source game ManiaDrive, which I found about while testing UltimateStunts, itself a clone of Br0derbund's Stunts.
Who owns the IP to Br0derbund/Mindscape now?

It's all a complete mess.

Steam EA deals:
Spore: 33% off
Sale Price: $26.79
Dead Space: 50% off
Sale Price $9.99
Mirror's Edge: 75% off
Sale Price $4.99
Make note that Pure Time Trials DLC ($9.99 from ea store) is not compatible with steam version of Mirror's Edge.

EA Support is saying Steam version is compatible. I asked them twice and they said it is compatible.

I'd be wary of anything EA support says. Over on the Dragon Age boards, despite the fact Windows 7 is listed on the Dragon Age box under both the System Requirements and the Recommended Specs, EA support will tell you Windows 7 is not officially supported if you're having issues on that platform.