I get bad burns with 8x, so I just got back from CC where they're selling Verbatim 1-4x 10-pack w/ jewel cases for $10. No rebates or anything. It's only til Sunday though.
100 pack DVD+R for $38 shipped AFTER rebate. I hate rebates, but I've had good luck with Verbatim rebates in the past.
let me know if you find a better deal.
I checked newegg and the deal is now from 2/4 - 2/18. Sorry for the late update, but I got my disks from it and figured they wouldn't put on such a good sale again right away.