Best CD sleeves out there


I am wondering what everyone's opinion is of the best cd sleeves on the market right now. I volunteer at my local library and I have to replace about 5000 jewel boxes with sleeves to save room...we have run out of space and we need to make the switch asap. I am interested in long time durability, ease of use, and the capacity to stick the liner notes/leaflet in the sleeve with the cd. A deejay told me he uses Tyvek sleeves...any opinions out there?
mp666
They are not cheap but they are the best I've found.

http://www.jewelsleeve.com/index.html
I second Nsgarch with the Discosox recommendation. I keep all my CDs in them (about 1,00 now). When I get a new CD, I open the box, grab the booklet, and slip it in a DiscSox. Then I rip the disc to my harddrive and put it all away for safekeeping. At the same time I toss the jewelcase - those things even clog up my wastebasket.

The pleasant thing is that a tray of Sox is much like flipping through a miniature record bin.
Any difference between DiscSox DJ Sleeves and Jewelsleeves? I am about to sleeve 1000+ discs...