One of my favorite things about my Macs is that they are like compact entertainment centers. Sure, I bought them to facilitate my business needs but any Mac user knows that the reason you bought a Mac vs. a PC is because they're more fun!
I don't own a stereo system. My iMac and some fancy computer speakers does the trick. It's great–all my CD's are packed away because they're all in my computer now. In fact, until a few months ago, my 20" iMac screen was the biggest screen in my house. If I wanted to watch a DVD on the big screen, I watched it on the iMac. It does a great job. The new iMacs even come with remotes and software called Front Row to simplify your interface when in entertainment mode. Cool, but that doesn't help me. I got my iMac before they added that feature.
That's okay; I already have a remote for my iMac...my Treo 650. I have been using Salling Clicker for about two years now to turn my bluetooth equiped smart phone into a remote control for my computer. Salling Clicker is a software utility that turns a mobile phone or PDA into an advanced wireless two-way remote control for your computer. It works on both Macs and PC's. It really does it all. It lets me use the touch screen to control the mouse. I can control Powerpoint or Keynote from my Treo. I can control just about every app on my Mac from my Treo. Really the only apps I use it for are Keynote and iTunes.
iTunes is really the reason I bought it. It lets me browse my play lists, play, pause, fast forward, rewind, you get the picture. It even shows me the album art that is associated with each song or album. The best part is that it doesn't require line of sight. I can walk around the house with my phone in my pocket, as I always do, and have immediate access to my iTunes controls. It's really a great program for about $24. It's a cheap way to satisfy your inner control-freak. Enjoy!