Here's the situation: I received a substancial giftcard for Best Buy. I am planning on purchasing a set of speakers (read: name brand, greater than a 2.1 set-up). I know that Macs currently cannot support 2.1/4.1/5.1 speaker set-ups out of the box. However, since several of the models I was looking at featured an "auxiliary input jack" (i.e. a 3.5mm input/headphone jack) I was wondering if I could purchase the set-up and connect it via the 3.5mm speaker jack on the side of my CRT iMac. Is this feasible/possible?