First deal so please be nice.
I found this on toys r us. may not be as good as MikeT's Dell special but guess can be of used to someone.
not sure about brand etc but processor is good. you can always upgrade memory and other bits later
Processor: Intel Core 2 Quad Q6600 Processor
Clock Speed: 2.4 GHZ
Memory: 2048 MB
Hard Drive: 320 GB
Optical Drive: 3-in-1 DVD Rewriter
Modem: 56K Modem
Graphics: Intel Graphics Media Accelerator 3100 with up to 256MB shared video memory.
Card Reader: 15-in-1 digital card reader
Ports: 8 x USB 2.0, 1 x VGA Connector, 1 x RJ-45 (Ethernet), 2 x IEEE 1394, 2 x PS/2 for keyboard and mouse, 5 x Rear Audio, Front/Headphones, Microphone, S/PDIF Optical, 2 Front Audio Ports, Microphone and Headphone.
Keyboard/Accessories: Premium Multimedia Keyboard, 2-Button Wheel Mouse, Amplified Stereo Speakers (USB Powered)
Operating System: Microsoft Windows Vista Home Premium
Microsoft Works 8.5
Intel Viiv 1.4