The hotel package from Argon is utterly worthless, but the camping option is worth considering. I didn't get my tickets until I actually boarded the bus, but international mail considered, maybe that was the right idea...
Argon is worth it if you 1) take the camping option, 2) don't want to be bothered with renting cars, or otherwise arranging transport to the festival grounds, and 3) don't mind a long coach ride (i can still smell the puke...eerrgh!)
Cannon - that other guy on here from Georgia mentioned that he got tix in short order from Nuclear Blast. Might be the best bet for us.