Price Check - AlienwareP4 3.2, 1Gb RAM, 128mb Ge6600GT

Can you lovely people give me a price on my Alienware PC bought in March 2005?

Alienware
Pentium 4 3.2GHz
1Gb RAM
128mb Nvidia Geforce 6600GT
DVD reWriter NEC
Space Black Case
160gfb SATA disc
Windows XP Home

Any ideas welcome

Thanks

In case anyone else was wondering a price it went for £539 on e-bay.