Good luck CTX.. have you tried the Logical Reasoning Bible? That worked wonders for my LR sections.
I will be using the LR-Bible and PT's 48 and later. Also have the 180 but it seems to defeat me readily.
I'm a big fan of the Powerscore materials, and I think they're definitely the best way to go for LR and LG. I couldn't find anything suitable to help me improve my RC when I studied the first time, however, and found 180 the most useful thing for that purpose. I also did all of the LR and LG in the book for practice, but ignored Kaplan's methods in favor of the Powerscore methods I had already practiced with.
I think I'll go back through 180 the week before the LSAT. It has the toughest questions, therefore I would recommend saving it for the end of your study when you're really trying to perfect your methods.
There are only 6 tests included in the PT 48 and after set (48, 49, 50, 51, 52, and June 2007 on the LSAT website). Are you sure that is enough practice? You can get a book of 10 pretty recent PT's for around $20. You don't have to buy them all separately at $8 each.