I have an 8 year old system that I need to upgrade. But do to a budget I'm going to do it one thing at a time. Here it goes, and please be kind Kenwood Pro logic receiver 100w x 3 25w x 2 Infinity Studio Master towers 12" woofers Infinity center channel, entry level Atlantic Technology surrounds This equipment was bought when I was in my early 20's and had my first place and was throwing a lot of parties. So loud music was what I was looking for. Now I want to slowly convert it to a basic Home Theater. I recently purchased a Sony DVD player and a Sony 36" Wega TV (KV-36FS200). Not a HD but it was an open box and 40% off so I couldn't pass it up. What should I upgrade first? What would have the biggest impact? New Digital receiver? Better speakers? Subwoofer? Thanks!!!