You can still get pata ssd's, i had an older vaio and did a run around back then the only problem is the price. Another problem you have to strip them right down to get to the hd. Your really screwed with this ultra ports and the best thing you can do is try
http://www.nliteos.com/ and make a custom install with sp2 not 3 and strip out any un-needed packages/components. Try using win 2k desktop settings/theme to save on windows rendering desktop background, icons ect