Rome Total War on Torchlight 1, Terraria, Castle Crasher or Monday Night Combat.
Maybe one of these for Oblivion?
BETA:
DOTA Tradable Gift
GIFTS:
Awesomenauts
Batman Arkham Asylum GOTY
Civlization 5
Dead Space 1
Dead Space 2
Dungeon Defenders
Evil Genius
Fallout 3 GOTY
Just Cause 2
Left 4 Dead 2
Magicka
Metro 2033
Nation Red
Nuclear Dawn
Portal 2
Risen
Rock of Ages
Rome Total War Complete (includes Alexander)
Spore Creepy and Cute Pack
Starvoid
Terraria
Tomb Raider Anniversary
Tomb Raider Legend
The Club
The Witcher Enhanced Edition
The Ship Complete 2-pack (gives an extra gift copy on activation)
Torchlight
Trine 1+2 Franchise
Tropico 4 Steam Special Edition
Two Worlds 2 Velvet Edition
Warhammer 40K Dawn of War Platinum (3 games)
STEAM KEYS:
Avadon the Black Fortress
Cogs
Cortex Command
Crayon Physics Deluxe
Eufloria
Hitman Blood Money
Insecticide Ep. 1
King Arthur 1 Collection
King's Bounty the Legend
Lead & Gold
Men of War
Might & Magic Clash of Heroes
Reign: Confict of Nations
Rig n' Roll
RUSE
Shoot Many Robots
Space Rangers (this game is no longer in Steam store)
S.T.A.L.K.E.R.: Shadow of Chernobyl
Superbrothers Sword & Sworcery EP
Supreme Commander 2
Swords & Soldiers HD
Theater of War 2: Africa 1943
Velvet Assassin
Warhammer 40,000: Space Marine
Zen Bound 2
Zeno Clash
HIB3 Android 3 Bonus key (World of Goo, Anomaly, Osmos, EDGE)
Complete list of what I have:
-Worms Reloaded
-Torchlight 1
-Oblivion GOTY Deluxe Edition
-Terraria
-GarrysMod,
-Castle Crashers x2
-Monday Night Combat
-Darksiders
Want
-Alice Madness Returns
-Fallout New Vegas
-Mass Effect 1+2
-Assasins Creed 1 or 2
-Alan Wake
-Just Cause 2
-Crysis
Also willing to pay with SteamWallet/other games if you wish so.
Edit: already got both Witcher games. Added quite a few game just because.
Please note that games not listed here are not up for trading.