Interesting:
Total Annihilation for $10 on Impulse. Impulse claims that this is an exclusive item.

I don't know. But after You Are Empty I'm certainly more keen to take a chance on it. Vivisector is developed by the same people behind Cryostasis, which is one of my favourite games of last year.

Does anyone know if it works on Win7 64bit?

Damn Cyrostasis. I heard good things of it aswell. I think I gonna buy both. Also, I should get Cyrostasis.
DRM'd,perhaps?

Cryostasis is DRM-free on Gamersgate. I don't know about elsewhere. Just be warned that it's pretty graphically intensive and some people have had problems with it. Personally I only noticed problems in the demo (some platforms disappearing) but it might be worth giving that a try first before you buy it.
Oh and there's a demo of Vivisector here. I've just started downloading it.

Answering here as well, for other curious users:
Yes.

Indie Pack on Steam £10 or the prices listed if bought separately.
Altitude - £2.00
Bob Came in Pieces - £2.00
Bullet Candy - £2.00
Galcon Fusion - £2.00
Gridrunner Revolution - £2.00
Space Giraffe - £2.00
Super Laser Racer - £2.00

This indie pack on Steam is great.
Gridrunner Revolution is the videogame equivalent of a psilocybin mushroom. It is the trippiest game I have ever played. It makes my brain tingle.

That's Jeff Minter for you. :D His games have been awesomely trippy like that since the C64.

For Cryostasis. Retail version is using only Securom disc check drm, Gamersgate is DRM free and Steam is using only Steam DRM.

The demo appears to only be in German, so let me know what you think. :D

To late already bought it. I'll play it tomorrow and give my opinion. But it looks fun. Cyrostasis will wait though, maybe there will be a good offer aswell.

It was half price over Christmas. It might be again. But probably not so soon.

Gamersgate weekend deal: Condemned: Criminal Origins is 75% off ($3.73)

I also have this game on GG from last year, never played it. Thanks for reminding me of games that I don't even remember buying.