I'm going to splurge on some CGear before our next long camping holiday. I'm just going to go with ebay - any of the links that shrek supplied will do the job (they're all the ones on my watch list anyway!).
We currently use the OzTrail mesh, and while it's good, it's not great. Camped at the beach a fortnight ago, and needed to sweep the sand off it 2 or 3 times a day. Consequently, lot of sand ended up inside the camper. My hope is that the CGear stuff does what it says on the tin, and the sand will fall through. If you're not going beach camping though, the Oztrail stuff is good for normal grassy spots so long as you peg it out tight.
Cheers!
Matto