Maximum PC

I have a Lenovo/IBM ThinkPad SL400 I'm thinking of selling, and need an estimated value:

here's the specs:
Intel Core 2 Duo T5800 (2.0 Ghz, 667 Mhz FSB, 2 MB cache)
2 GB of RAM
Intel GM45 chipset (I think, please verify)
160 GB Hard drive
Integrated Intel GMA X4500MHD
Dual Layer 8x DVD burner
Wireless B/G wireless card
integrated 10/100 network card & 56k modem
14" 'widescreen' display with glossy screen
fingerprint reader
media card reader
onboard integrated sound
integrated trackpoint and touchpad pointing devices
comes with 2 AC adapters
VGA output with HDMI output as well
(4) USB 2.0 ports

Has Windows Vista Home Basic but Lenovo has drivers for Windows 7 as of recently (last I checked).

The computer is in good condition. No cracks, scratches or worn parts. It's only a year old (out of warranty) but works great. No problems whatsoever. I want to upgrade to something that supports chip-level virtualization for use with Win7 Business and WinXP Mode.
It is dark black with a glossy top cover
--OR--

Unless someone knows what a compatible processor would be for this computer that supports Intel's virtualization, and is at least 2.0 GHz (don't care to spend more than about $150). L2 cache doesn't matter as long as its at least 2MB.

$350 - $400