Ok well it is time to upgrade my sound system. I want to replace my 6x9 in front with something that has great highs and mids and dedent bass response. I also need to get some 6 1/4 (i think) for the rear. What are some good sounding, decently priced speakers?? Also need a new amp around 500-1000W and can fit in tight places and doesn't have an overheating problem. Suggestions??