available, not total free btw.
i have 120gb in mp3's, 360gb in dvd rips and work in progress', 350gb in pictures NOT in the wbesite, and 850gb in the website and a few hundred gb in loaded games. sitting at about 24% free space. Picking up another pair of 750gb's this week.
I had run a raid for a few years and stopped using it because it was more trouble to put up with than foregoing it with typical consumer motherboards. 90% of my content is on dvd's for longterm backup. I run a 500gb esata external for daily incrementals of the main "my docs" to cover the other 10%. of the 4 times I've had drives fail in the last decade personally I've recovered everything critical from the drive with easy recovery faster than it would take to read it back off dvd.RAID anywhere? Hope you have some redundancy. That's a lot to backup.
Get the WD Velicoraptor , replaces the raptor and is back on top again in the SATA class. 10k and 300Gbs. of course its going to be above 200 bucks, but has to be below 300 bucks as SAS 300 GB drives are about $280 and you can get a cheap controller for $50 or so.i'm waiting for the 10k's to come in a capacity bigger than 150gb at reasonable prices.