I got this from the Cricut board yesterday.
www.diecutcentral.com is having a $29.99 sale on over 100 cartridges, including new releases. I ordered 14!! Their shipping is really reasonable and I have already received a shipping notice less that 24 hours after ordering. I have read that they are very reputable.
Also, Michaels is having a slae on the cartridges too beginning Sunday. They will be $29 and $39.