My old Lattitude CPI 250 Mhz laptop with only 128 megs of ram runs XP ok, except that IE8 is a bit of a drag on it.
It was much faster when it had IE7 (and IE8 doesn’t like the FR posting window at all!)
I used to have to fix those laptops for a living as a computer tech.
Unfotunatley my old company Unisys took on the money loosing Dell account.
After the 400th LCD replacement procedure the job started to get a little boring....
By then i was glad to be laid off.