In reply to chrissys:
Had my DMM highball for 5 years and its still going strong. Great foam and it hasnt gone all mushy like other pads do after a while.
I have had to repair some shoulder strap stitching with floss but that's cos i travel with a ridiculous amount of kit in the pad sometimes. (7kg tripod, 4L water, shoes, chalk, stick brush, etc)
Also purchased the Moon Warrior at christmas time, again it's a fantastic pad but it's quite a bit bulkier to move around and doesn't fold nearly as small as the Highball on account of the Taco style.
You can't really go wrong with either one so it depends if you want one to pack down slightly better or you want the slightly bulkier (and thicker) pad. Warrior has a great closure system for filling it with gear also.