Yes. Your ps3 will notice nothing
When shopping for hard drives you should make sure that it is compatible with your computer. You should also make sure it's big enough for your files.
Toshiba hard drives, as are most USB 2 drives, are fully compatible with Mac OS X. (See links below)
Yes. Any hard drive, flash drive, or other external storage device that conforms to the USB Mass Storage device standard will work on Windows Vista.
harddrives
basic
The top four brands of 1TB Hard Drives are amongst others Western Digital hard drives, Seagate hard drives, Toshiba hard drives, and Hitachi hard drives.
You cannot purchase hard drives with Windows pre-installed on it.
SCSI
i have stacked 4 external hard drives (from different brands) on top of each other for years. No problem
Windows XP has no hard limitation on the number of hard drives, or at least none that has been published. With the way it handles disk drives, it is far more likely you'll run out of space to put the hard drives before you hit any other limit.
Hard disk drives
Instead of coming with hard drives, many CD players are capable of playing discs with other media, such as MP3s.