I'm going to jump in here, and i think i'm entitled to, since the original HLP meet was attempted by me (even though it fell through).
I think it's best to do it in a central location...yes even if no one in HLP lives there. it's not fair for everyone to have to travel except one person.
Also plane tickets are cheap these days. I'm flying to Colorodo beginning of next year, and when I purchased the ticket (~90 days in advance), it came to $148 ROUND TRIP. i haven't seen a ticket that cheap in years. Of course now, the same flight is almost $300, but that just proves my point - the earlier you do it, the better!
Finally, if we all fly (which, let's be honest, is going to be the most practical. I'd rather fly somewhere for $150.00 and 3 hours, than spend $80 in gas, and waste 48 hours driving. not to mention food costs along the way, wear on the car, etc...), then it should be a city that's a hub for airlines. Houston is the base of operations for Continental airlines, so i would of course suggest that, but then once here, there really isn't much to do.
If i get a 60 day heads up, i'm definately in. I'll fly anywhere in the continental united states.
First things first, i think everyone needs to agree upon a PLACE. then a DATE. then after that i'll make some calls and get cheap hotels, etc.