I switched from PC to Mac last summer with the purchase of a 17" pb. I instantly fell in love. Finally with the latest G5's I am able to now switch on my desktop as well. But here is my problem, as long as I have been building PCs I have really gotten into using RAID 0. I personally notice HUGE performance increases from it, directories load faster, files show up quicker, things just run fast. I really want to run my new G5 with RAID 0, even though it's only software, I have read an article or two that says the performance boost is definitely good. I have 2 120 SATA drives and then the 160 that is coming with my new Powermac. I know that with RAID (at least on PC) it is best to use the same drives for your setup. So I have a few questions... First off, on Mac am I going to notice a big increase in perfomrance from RAID like I do on my current, soon to be gone PC? Is it possible to partition my drive after I RAID it (haven't ever partitioned a drive on Mac)? So what I mean is have a RAID drive that is 240g except have it partitioned into a 180g and 60g? Should I use my 2 120g drives, even though I then loose 40g of space? Or is the increase in speed not worth it and I should just use a 160 and 120? What procedure do I need to take with the HDs so I can get them in my Mac? For instance I don't think I can just take my nice XP install and stick it in the Mac and be able to imidiatley format it and install panther... or can I? Maybe I have some serious flaws here, so if so please let me know how things work. Trying to figure out the more nity gritty on hardware when it comes to mac, and exactly what you can and can't do. Any input you guys have would be great, thanks!!