What should this PC make

Any ideas what I should expect (in ££££) for the following spec PC:


Dell Dimension P4 - 2.8Ghz
512Mb RAM
80Gb Hard Disk
17" Dell TFT Monitor
Logitech Cordless keyboard & mouse
basic speakers
Win XP Pro

Good working order. No problems just looking to move to a new laptop to save space.

around £200 base unit
+ monitor £300

I would say about £100 for monitor, £175-225 for the base unit.

Dave