I am currently in the final stages of building a 5.1 (for now at least) system. So far I have: Polk RTi 70's CSi40 Sony STR985 receiver Since I have the 70's up front I will probably get a pair of FXi50's for the rear. Currently, I have a small condo and can't really get full use out of the HT system but I want to have an eye to the future. In 1-2 years I plan to build a much better system (I love the Ref 50). The subwoofer is where the question is. I would like to get a good sub that I can keep when I start upgrading. As much as I would love to get a Polk sub (650) while they are offering the $200 deal when I get the FX50's I might be better served getting a better sub that I won't need to replace in a few years as I upgrade the rest. Can anyone throw some opinions out? I am looking at the SVS 20-39 PC+. Also, I have been using some old wire and will be getting new speaker wire for all 5 speakers. I hate to open a can of worms but can anyone offer some advice on the best (and most cost effective) 12 ga wire? I would like to stay under $1/foot. Thanks in advance for any replies. I have been reading this forum for awhile and finally decided to register and hopefully contribute.