What have you already bought on Steam Summer Sale?

Nothing. On key sites like Amazon, etc... I bought Tomb Raider for 11€, TDU 2 for 3€ and traded a key for Bastion.

Bad Rats (not joking)

Dungeons of Dredmor Complete
Critical Mass
Puzzler World
Wizorb
Puzzle Dimension
Time Gentlemen, Please! and Ben There, Dan That! Special Edition Double Pack
Dangerous High School Girls in Trouble!™
Bad Rats: the Rats' Revenge
Magical Drop V
Puzzle Quest 2
Fluttabyes
Adam's Venture Complete Pack
Penny Arcade's On the Rain-Slick Precipice of Darkness 4

Not quite done yet though, just waiting to see the flash sales and daily deals before I get more, those I just know aren't likely to go lower.

Also can add Chaos on Deponia from the Gala Store. They beat Steam's price.

2x SR3 Full Package. One for me, one for my brother. I'd be buying a lot more of the cheaper games like McPixel if I had the cash, but this sale I'm being frugal and only buying things I really want, not just buying things for the sake of them being cheap.

mk arcade, sr3 full, doom classic, l4d1

added 50€ for the sale and spent half of it.

mcpixel (due to steam cards for free)

Strike Suit Infinity and Grid

If they would put up publisher bundles I would be spending hundreds more like I planned to.
GAH!!!

Scribblenauts and Civ Fi.. wait they have terraria? brb

Anyone think Don't starve will go on a bigger sale?

Nothing. :c

Call of Juarez : Gunslinger and Hard Reset

Nothing yet. I am ready to buy but nothing has really moved me yet. Id have bought Dishonored last night if it won Community Choice, but it did not, it'll get flash or daily deal eventually. Other than that, just chillin till I see stuff I want.

Only Hotline Miami so far, but hoping for Flash/Daily/Community deals on some other games.

Deus Ex HR, Skyrim Legendary, Surgeon Simulator 2013 and Dark souls.

I picked up Eschalon Book I (I won book II on here a while ago and it was fun, but I'm OCD about playing series in order, so I decided to buy Book I before getting too far). Scribblenauts, Don't Starve, and Time, Gentlemen Please. I'm going to pick up the Call of Juarez game before that deal expires, but I need to load my wallet first.

Let me see...

Audiosurf
Insecticide Part 1
World of Goo
The Mawesome Pack
Puzzle Dimension x2
Saints Row the Third: Full Package
Scribblenauts: Unlimited
Blocks that Matter
Wanderlust 4 pack
The Basement Collection
Super Hexagon 2 pack
No Time to Explain
DLC Quest
King's Bounty: Platinum Edition
Magicka 4 pack
Beat Hazard Complete
Payday: The Heist and Wolfpack
Grotesque Tactics Bundle
To the Moon
FTL
Daedalic Bundle
System Shock 2
X Blades
Cubemen Bundle
Storm in a Teacup
Fortix x2
Fortix 2 x2

Yep... $140 well spent.

Bioshock Infinite. Seems to be a nice game thus far!

These sales aren't nearly as bad for your wallet when Steam already robbed you from all those other sales.

Dungeons of Dredmor Complete, To the Moon, Dark Souls, Saints Row 3 + all dlc, all Darksiders 2 dlc (already had the base game)

Scribblenauts Unlimited

Nothing yet, but I'm probably gonna get Fez.

I want to buy Half minut hero, but steam don't allow me... :/

Fez
Legend of Grimrock
Just Cause 2
Psychonauts
Scribblenauts Unlimited
Bioshock 2
Dragon Age: Origins
I've given into temptation and brought a ton of games already.

Nothing yet, I'm paying all my games with TF2 stuff and cards at the moment, so there's no need to open my wallet. Yet.
I wish I didn't miss the Metro Last Light offer from yesterday though... 1 penny, that was a real steal.

Bought:
Fallout New Vegas
Far Cry 2 Fortunes Edition

Plan to Buy:
The Walking Dead
Operation Flashpoint Complete
Battlefield 2 Complete Collection
Rising Storm ( if it goes on sale)
Fallout 3 GOTY( If I can find any tweaks for Windows 7 compatibility )
Zombie Driver HD
Half Life Complete