Okay, here's a breakdown. I have 227 songs ripped into 256kbps AAC, and all of them I borrowed from my brother, except for two doubles I borrowed from my uncle (Hey, I ran out of CD's of my own that I want to rip, and the Sister Act soundtrack is staying at least 5 ft from my PB

). I have 771 songs ripped into 192kbps AAC, mostly from my own collection, and those will soon be replaced by 256. I figure once I get some nice headphones, I's be able to hear it (even though recordings rarely do orchestras and concert bands justice). 99 songs are ripped into 128kbps AAC, 91 (plus one album I forgot to put on my PB) from the iTunes music store, and the CD from my cousin's ska band, which I ripped at 128 for some reason...
The rest (456) are in varying levels of MP3. Some are albums I haven't gotten around to re-ripping in AAC yet, and the rest are from more questionable methods

And here's the breakdown of those: 16 at 320kbps, 66 at 192kbps, 106 @ 160kbps, 215 at 128kbps (one VBR), 5 at 112kbps, 2 at 96kbps, 3 at 64kbps, 1 each at 48, 32, and 24 kbps, and 5 unkown, three of which are streams.