Something like this may fit the requirements, it is a solid system although if your mate would consider overclocking he would see more benefit. It might be better to go for the next PSU/case up in the range if he did.
OcUK ATI Radeon X1950 Pro 512MB GDDR3 HDTV/Dual DVI (PCI-Express) - Retail £69.99
(£82.24) £69.99
(£82.24)
Samsung SpinPoint S 160GB SATA-II 8MB Cache - OEM (HD161HJ) £28.99
(£34.06) £28.99
(£34.06)
Samsung SH-S203BEBN 20x20 DVD±RW Dual Layer Serial ATA ReWriter (Black) - OEM £16.99
(£19.96) £16.99
(£19.96)
Antec NSK 4480 Mini Tower Case - 380W Earth Watts PSU £45.99
(£54.04) £45.99
(£54.04)
OcUK Value Hanns-G HW191D 19" Widescreen LCD Monitor - Silver £99.99
(£117.49) £99.99
(£117.49)
Gigabyte GA_P35C_DS3R (Socket 775) PCI-Express DDR2 & DDR3 Motherboard £69.99
(£82.24) £69.99
(£82.24)
Intel Core 2 Duo E2160 "LGA775 Conroe" 1.80GHz (800FSB) - Retail £44.99
(£52.86) £44.99
(£52.86)
OCZ 2GB (2 x 1GB) PC2-6400C4 Dual Channel Platinum Revision 2 XTC Series DDR2 (OCZ2P800R22GK) £41.99
(£49.34) £41.99
(£49.34)
Sub Total : £418.92
Shipping cost assumes delivery to UK Mainland with:
City Link Parcel Next Day (Delivered Mon-Fri)
(This can be changed during checkout) Shipping : £12.95
VAT is being charged at 17.5% VAT : £75.58
Total : £507.45