If you've got the budget (or perhaps a nice gift idea), I'd grab a smaller SSD and use that for your boot drive.
If you keep it clean/lean, a 250GB SSD is fine for boot drive.
Use the 1TB SSD for disk-streaming samples.
That'll yield maximum performance.
If you're going to use the 1TB SSD for boot and disk-streaming samples, I'd at least partition it separately.
That way... when you go to backup the boot drive, you're not backing up huge sample libraries each time (making the process slow/tedious and taking up massive space).