Need price check

I have a very good idea what this is worth but i need a price check from you guys :)

> Athlon XP 1800+ TT Volcano 7 HSF put on with AS3 and has a brand new TT fan
> Kingmax 512MB PC-2100 DDR ball grid array RAM
> MSI KT3 Ultra 2 w/ USB 2.0, KT333 northbridge, (no raid)
> ATI Radeon 8500LE 128MB DDR (original ATI, no imitations :p )
> Soundblaster Live! 5.1
> 40GB Maxtor Dimondmax Quietdrive
> Lite-On 16x DVD-ROM
> Lite-On 32x/12x/32x CDRW
> Antec SX830 Case w/ 300Watt antec PSU

It is 4 months old, p-e-r-f-e-c-t condition, solid as a rock and serves me very well. What do u guys think?

$600