I'd recommed you search and follow The_Marioga's tutorial in order to install the X11 Server and Fluxbox (not really a GUI but a Windows Manager, works the same though).
Once you get it running you can install a light browser like Iceweasel, an Msn client as Pidgin, and some other cool tools, like conky which keeps you informed of your system status at all times (processes running, memory, swap, disk space, etc.)
This worked out much better for me than Xwhiite
Cheers