looking into getting a mac...

i have been looking on ebay for a mac laptop, i recently just sold my pc desktop because i need more portablity i have had mac before... but i am sort of suck on which mac i should get...
powerbook g4... or a macbook...
i know the g4 is old, but i can get it for 300 cheaper than a macbook.
i am just wondering if anyone thinks it would be a bad idea to get a powerbook over a macbook?
i don't want it dying on me, if it's something like getting a new battery for it.. that would be fine..

any suggestions? thanks!

 

nothing crazy..
photo editing software
downloading music
surfing the web
maybe sometimes yahoo games

thanks for quick reply!