How much is the value of this used i7 desktop PC system?

[professorman]

I havent bought a computer since my core2duo laptop, so I am a bit out of the loop. I want a desktop for photo editing to run Adobe products.

I am looking on a used system. How much is this system valued? He is asking $600. Is this a deal or should I offer something lower?

Build by CyberPowerPC
- Professor: INTEL i7-950 3.06GHZ 8M LGA 1366
- Motherboard: ASUS P6T SE X58 CROSSFIRE TRIPLE CHANNEL DDR3
- RAM: (6) 2GB DDR3 PC1333 RAM -12GB total
- Graphics card: EVGA NVIDIA GTX 285 2GB
- Hard drive: 1TB SATA II 3.0 GB 7200RPM HD
- Processor cooler: ASETEK 240MM WATERCOOLER
- Power Supply: AZZA 1000WATT POWER SUPPLY
- Fan: NZXT DIGITAL FAN CONTROL and CASE FAN 120 MMM
- Sound card: CREATIVE X-FI XtremeGamer
- DVD Drive: BLACK PIONEER BDC-202BKS BLU-RAY PLAYER
- Case: BLACK COOLERMASTER STORM SNIPER

It also says : NO SLI/CROSSFIRE . I am not sure what that means.
What does triple channel DDR3 memory mean? Do I buy RAM in triple instead of double?

How much is this system worth today? What is the value? How much should I pay?

 

[Ken g6]

No price checks! It's a forum rule. Sorry.

 

[lehtv]

Can't do price checks here, against the rules, sorry. edit: ninja'd

 

[professorman]

No price checks! It's a forum rule. Sorry.

Ahh...man... Any 'forum legal' ways to find out? I guess I could see how it could clutter up the board.

 

[lehtv]

Just search ebay's used, completed listings for those parts or similar. That will give you a pretty good estimate