i have a g4 powerbook titanium 1ghz, 1gbram. i tryed looking it up and there are alot of differant answers. most say ata/ide. is this correct? i found a good price on a hard drive near my house. its a EIDE hard drive. will that work? also is there a differance between ATA and ultra ATA? are they the samething? please help i dont want to buy the wrong one.