hey everyone. i'm new to this forum but i've been reading it for awhile. i am looking for a laptop, preferably an ibook, thats used. i am just wondering what model i should get. are clamshells any good? i like the look of it but are they really really slow and can i install tiger on it if i max out the ram? I am also wondering where i could find a good site for used ibooks because my mom doesn't want my buying off ebay. I will use the computer for mainly documents, itunes, surfing the net, watching music videos, downloading, and the usual things. i don't play many computer games. my budget is also <$500 since i'm hoping to get a new ibook once the rev. b intel ibooks come out. i will also be travelling to england for next year so where will the laptops still work there? or do i have to get a special adapter or something to plug into the laptop? so basically i am deciding between a clamshell and the g3 ibooks. thanks guys and gals!