Yeah, now that I have had a 360 for a week, I'm looking forward to one of these as well. I've already gotten lots of easy achievements from XBLA games. I am saving games like College Hoops 2K6, King Kong, Gun, and Tomb Raider Legend for any potential challenge. I also have some achievements to snag in Lego Star Wars II. On the other hand, I wonder if I should get myself into the second tier before it starts?
Edit: Hmmm - I hadn't noticed the second level went from 5000-9999. Yikes, don't know that I'd get to 5000 any time soon without a concerted effort :lol:. No way I'm hitting 10,000 any time soon - and of course, that's where the good stuff is. Oh well, maybe by the 3rd or 4th challenge I'll be there. Hopefully they keep these up...