Yes Ben, as the others say, treat yourself to a newer, secondhand machine.
I bought two of Unrealdave's HP machines for £20 a piece, c/w Windows 7 professional 64-bit OS, and they're brillliant in every respect.
I didn't think I really needed them at the time, being happy with what I was already using, but when I tried one, I realised just how relatively incompetent my 15 year-old old Windows XP machines were in comparison. I haven't had the heart to throw them out though
N.