I was going to buy some nice headphones to use while studying, etc. for use at my computer. I was leaning towards these: Sony MDR7506: http://www.amazon.com/Sony-MDR7506-...hone/dp/B000AJIF4E/ref=tag_dpp_lp_edpp_ttl_in But perhaps they are a little overboard for just listening to music at my computer. Then I saw this subwoofer and I really need a subwoofer to complete my 5.1: Polk Audio PSW10: http://www.amazon.com/exec/obidos/t..._shr?_encoding=UTF8&m=A2A0CZG0007A9F&v=glance I have a gift card to Amazon for $30 and don't really want to spend too much more than $100 right now on toys b/c I'm going to be dropping $2000 when Apple updates MBP line. So my question is which should I buy?(obviously this is a personal choice, but if you were in my situation what would you do---I'm feeling indecisive) Another option is that I could get the subwoofer and then pick up a cheaper pair of headphones, such as these: Sony MDR-V150: http://www.amazon.com/Sony-MDR-V150...5?ie=UTF8&s=electronics&qid=1265759764&sr=8-5 Thoughts?