This blogger writes about his experiences with Ubuntu on an IBM Thinkpad R50e with a lowly 256mb RAM
Read it here
Well, at long last Ive bitten the bullet and thought Id go and see what this thing called Linux was all about. Many moons ago I dabbled with Unix and loved the fact that the command set made no sense and that it quirks frustrated the hell out of any one who new DOS back to front. Plus the fact that there was a finger command cracked me up every time.