I bought a starter pack two years ago, and I still have my crappy little practice amp. I wanted to get something new, affordable, and something that would really give me my bang for my buck. http://www.musiciansfriend.com/srs7/g=bass/search/detail/base_pid/482545/ do you think this would be worth it? my price range is up to $400, and i can't find any other head/cab packs in my range. any advice is appreciated.