I just got a great deal on a pair of M-Audio BX5a Deluxe Monitors. There in the mail but I'd like to find out the best way to connect them to my computer. I think I'll have them receiving input via an Airport Express. The BX5a input is a 1/4" TRS connector. I believe I'll need a Stereo Mini (1/8") Male to Two Mono 1/4" Males. Is that correct? Any recommendations of the best place to get this?