hi guys...i got a ibook g4 with the following spec:

G4 PPC 933mhz
640mb ddr ram
currently using mac osx panther 10.3.9

I know that this model can have a ram up to 1.25GB if not mistaken...so my question is, where can i buy these ram modules? must i use the apple certified modules? or can i just get the ordinary brands such as kingston etc?

second is regarding the operating system....im hoping to install macosx leopard but since i dont have a dvd drive bay(mine is just ordinary CDROM drive), i find it impossible...is there any way around this problem?

thanx...

Hi..anyone here know where to buy this thing? not the desktop hdd size one..but the laptop hdd size one.. im only looking for the enclosure...without HDD...thanx...

thanx for the info...where u get that case? here in forum or at lowyat plaza?