How much is my PC worth?

[cocaine]

Ok, so I want to sell my PC and buy a laptop - for reasons such as a laptop is portable, I'll be able to sit in my (now lovely after it got done up) garden and use it there.


It's an Acer Aspire SA80
2 x Intel Pentium 4 CPU 3.06Ghz
1GB RAM
SiS 661FX/GX Mirage graphics (Integrated)
149GB Hard Drive
Included:

17" Exprex LM-1704 flat screen
Keyboard and mouse
Cables and wires for mouse, keyboard, screen, plug, audio etc.
It's around two years old. I would include pictures but the cameras busted and the new one is charging.

So yeah, how much could I get for it (I bought it brand new for £400).

[Technologic]

Between 200-300 i say.

[cocaine]

Excellent, I already have £100 saved up, my job gets me £80 / month (not much but its 10 mins a day) and my birthday is in July, however my parents said they'll chip in cos im doing well in school and stuff :]

[N!ck]

Probably around £200. £250 tops.