I'm looking for a good set of speakers for my imac. I'm no audiophile, but the speakers on the 2012 imac SUCK! I see a lot of people have the harmon kadon speakers (http://www.amazon.com/Harman-Kardon...UTF8&colid=56Y64SLJR295&coliid=I3OLWIWP4MTXWS) or the b&w speakers (http://www.amazon.com/Bowers-Wilkin...e=UTF8&colid=QPVQFN8ZZPDI&coliid=IVGMKP80X3CN). i'm also considering these (http://www.amazon.com/Focal-Satelli...UTF8&colid=56Y64SLJR295&coliid=I2PPJ6RNW9I2DP) i've read mostly good, but a few reviews that say there are better for the price. any thoughts on these or suggestions for others? i'm not very tech savy, but i'm not a complete idiot so a medium amount of installation is acceptable. size is not a huge issue, but i'm not looking for tiny speakers or huge 6 footers either. preferably something that can sit on my dest with a subwoofer underneath. oh and my budget is ABOUT $500. thank you all for the help and advice in advance!