Hmm well i have never brought a pre built from there and i dont know what you class cheap but i found this..
"Titan Vantage Complete" AMD Athlon 64 3200+ System (FS-016-OK)
If you are looking for high performance stylish looking system without the inflated cost then the new Titan is ideal. Titan Vantage is powerful enough for any task including all the latest games currently out too such as DOOM 3 and Half Life 2 offering an ultimate gaming experience and feature extremely low noise levels, you won't even know its on. Capable of any task you throw at this machine and fitted with a DVD Copier and Internet ready this machines represents excellent value.
- AMD Athlon 64 3200+ Venice CPU
- AMD approved cooler
- Asus A8N-E nForce4 Ultra PCI-Express Motherboard
- GeIL 1GB Value (2x512MB) DDR PC3200 CAS2.5 Dual Channel Kit
- 160GB Western Digital Serial ATA-2 8mb Cache Hard Drive
- NVIDIA GeForce 6800 GS 256MB DDR3 PCI-Express Graphics Card
- Pioneer DVR-110 16x16 DVD±RW Dual Layer ReWriter
- Onboard 6 Channel Audio
- Floppy Drive
- Antec SLK-3800B-UK Silent Midi Tower Case
- Antec 400W Silent ATX Power Supply
- Hyundai L72D+ 17" 8ms LCD Multimedia Monitor with built in speakers
- Logitech Media Keyboard (Black)
- Logitech S96 Optical Mouse (Black)
- Microsoft Windows XP Home Edition Pre-Install & Supplied with CD/License
Note - All Titan Vantage systems are built and installed on demand, during busy periods this may cause a delay of between 24 and 48 hours in despatching your order.
Price: £749.95 (£881.19 Including VAT at 17.5%)
I think it matchs all your requests..
http://www.overclockers.co.uk/acatalog/full_systems.html