Digital BW, The Print

I'm one of the many who, to upgrade to Photoshop CS, will have to upgrade
the OS to XP.

Since the 512 RAM was a limitation of Win98, I was wondering if people were
upgrading their RAM at the same time?
I've stuck other equipment into the box but haven't done a RAM upgrade yet
and was wondering if its a simple?
I'd like to go from 512 to 1G.  Suggestions?

Thanks,
Cleavis