Finding a place
I would suggest you wait... Once in MEM there is usually a board in the louge with open locations to crash. As many of the MEM people are heading north and MOST classes will definatley head north there arte places to be had.
Secondly, from experience they also have tendencies of moving classes up and back at a whim...
You can search out a few places if you like, but with the amount of people still going through training you would probably save money waiting until you get there.
Take the energy and start reviewing the pack they are sending you. That is going to be more important right now...
Know you EP's and limitaions... the first week is a test on limitations, and the EP's haev to be 100% by the end of class (verbatim with all of the %#&^#%$ footnotes to boot!)
I would also find out which instructor you haev as of the two of them one is significantly better than the other and the wash out rate BEFORE 9/11 was running at a comfortable 20% with some classes in the 35-40% range.
6 weeks on your own dime to washout is not a fun thing, especially in this environment....
Finally.... upgrade within 6 months? not likely... within 1 year... it depends on how fast we get these RJ's and if the lines expand greatly, otherwise it is 50/50... AND that is with the TIME