RAM and HD limit for Quicksilver PPC G4


I have a Quicksilver PPC G4 with a 40GB HD and 512+256 RAM. I am now using OSX 10.4 and want to upgrade the HD and increase the RAM. Is there any problems in increasing the internal HD? I heard that 120GB is the limit, and although this model will take 1.5GB of memory, I have heard that this also can give problems.

Advice please
1.5GB of mmeory won't give you any problems, unless the memory isn't up to Apple's spec.

You machine can only use a drive up to 128GB, unless you add an ATA/IDE Controller card, then you can use any size drive.