I'm interested in purchasing a pair of small powered speakers for desktop use and was curious if anyone had any experience with the following or could offer any suggestions. I'd like to stay below $200. So far, I've found... Audioengine A2 ($199) www.audioengineusa.com/a2_home.php M-Audio Studiophile AV 40 ($135) www.m-audio.com/products/en_us/StudiophileAV40.html Audioengine offers a 30-day trial, so I might audition them, but I'd like to hear others' thoughts first. Thanks in advance.