What should I get with my 20% off?

Rain Slick is awesome.  Picked it up a while back when it was on half price an i definately didn't regret the purchase.

Some indie stuff:

Freeform tower defense: Harvest: Massive Encounter

standard tower defense: Defence Grid: The Awakening

Top down shooter with rpg elements: Crimsonland

Music/Rhythm/wierdness: Audiosurf

also Shadowgrounds and Shadowgrounds: Survivor are really good, you can pick them up pretty cheaply.

Not indie, but if you havent played Rome: Total War and like strategy games I recommend it, and you can pick it up for around $10 these days.

the coupon works for more than one item.

Just picked up Braid, really beautiful and nice little game well worth only 10 euros Went for the SoSE games as well since I didnt have them yet  

Just bought Sins of a Solar Empire. Best buy I could ever get. This game for less than 20€ is a bargain !

Titan Quest is a great game

I recommend Mount and Blade it is $29.99 on impulse but it is definately worth the little extra.

or unreal 1 $10 on impulse  awesome game even though it isn't indie and is rather old.

I picked up Evochron Legends and Sword of the Stars Ultimate.

I was only a little bummed because of the price of SotS... but I already owned the original game on Impulse, and wanted to gift it to somebody since I now owned the anthology.  Alas, there is no such system in place

Awesome, keep em coming.  I bought Sword of the Stars about 1 hour before the coupon went out.  Already have Sins.  I've got Titan Quest, audiosurf, Unreal Deal Pack, and Mount and Blade on Steam.  I'll check out the games suggested.  Thanks everyone!

Bought:

Children of the Nile pack

Hinterland

Give Braid, World of Goo, Plants vs. Zombies, or Space Rangers 2 a try.

No point now as apparently the codes went invalid at the stroke of midnight for the 15th. So basically it was only active for 48 hours...

Coupon or not, they're still good games.

Prototype!!

(It's worth the extra 20 bucks!)

I caved in and got Prototype and it is enjoyable beyond my initial expectations Maybe because he's just so overpowered, but really it's fun just jumping around and gliding.

I might get prototype. It looks kinda awesome.

I bought Light of Altair, an indie space 4x-type game that just came out.  So far it is actually pretty cool with nice graphics and smooth zooming all the way from the planet level out to the galaxy level.

too late my coupon won't work