Thanks for the welcome everyone.
Thanks for the input Jason! I really did my research and tried to find the balance between spending too much money to start off, but getting the "better quality" Polaroids. I bought the 101 before I realized the differences (I actually haven't received it yet but paid only about $10). I then bought a 350 in VERY good condition for about $20 after realizing I'd prefer the rangefinder/viewfinder in one window. I know the 180 and 195 will be desirable, but I didn't want to spend that money (yet, hehe). I gotta say, I'm comfortable with rangefinder style focusing (and actually prefer it), so it was cool to me that's what is utilized in these old land cameras.
As for integral film types, the SX-70 I bought has already been converted for 600 film (which I'll have to stock up on), but the SX-70 seemed to offer the most flexibility in focus control from the integral type cameras. I probably spent more on it than I should have, but figured it was good it's already been converted for 600, and it's supposedly been electronically converted. We shall see
The Konica Instand Press looks pretty neat too... but wow, that's a pricey little beast!
I've been reading more about Polaroid backs too (while overpriced, the Diana+ seemed kinda cool)... any thoughts on those from anyone? It seems there are some really high-end ones in the medium format world (which is totally foreign to me)...
(sorry about the broken picture in my first post - I had to reorganize my photos on my site - here it is so you can see it now)