[Offer] Steam account 23+games [Offer]

I'm looking to see how much this account is worth
has the current games:
- Alien swarm

- Call of Duty: Modern Warfare 2: Single player

- Call of Duty: Modern Warfare 2

- Modern warfare 2 Dlc - Resurgence pack

- Counter-Strike

- Counter-Strike: Condition Zero

- Counter-Strike: Source

- Day of Defeat

- Day of Defeat: Source

- Deathmatch Classic

- Half-Life

- Half-Life 2

- Half-Life 2: Deathmatch

- Half-Life 2: Episode One

- Half-Life 2: Episode Two

- Half-Life 2: Lost Coast

- Half-Life Deathmatch: Source

- Half-Life: Blue Shift

- Half-Life: Opposing Force

- Half-Life: Source

- Left 4 Dead

- Left 4 Dead 2

- Portal

- Ricochet

- Team Fortress 2

- Team Fortress Classic



All up it's worth around 314$ Looking for someone to offer and see how much it's worth I'll upload pictures if i decide to sell.