increasing partition space for windows on mac

[MichaelHo]

Have just installed windows xp on my macbook via bootcamp, however only allocated 5gigs for it, is there anyway in which I can make the partition bigger?

 

[MichaelHo]

ive think ive just about got enough space. Only wanted to install it to play some counter strike lol. Doubt the macbook is good enough for cs:source so i just have cs 1.6 on there.
Not going to use it for much else as I love osx