Hi. I've been thinking of buying a new ps2 and having it modded at a specialty store, but before I do, I'd like to have these questions answered: 1. Is there any specific mod chip I should ask for? 2. Do backups generally play flawlessly or is it more trouble than it's worth (in other words, do games often freeze up or anything)? 3. Are the new slim ps2s less than ideal for playing backups? Should I look for an older model? Thanks.