Lol, this was fun for the first minute or so, watching all the apps bouncing around. Not so much when things froze up, & it took a good 15 mins or so to force quit enough to regain a bit of response
Dont know about my current one but my 3 year old dual Xeon 3Ghz box (with hyperthreading) did managed to do the following not too badly.
Play doom3 in a window on high detail (800x600)
encode a DVD using Shrink
Play some MP3's
Burn a DVD
Run a photoshop radial blur test
Outlook 2003 open... no cpu stress but I guess sucking some RAM
Reason I decided to try this is because I sometimes do all of these at the same time, but play in full screen mode so I was curious to see what loads I had on the processors so I switched out of full screen mode and reduced the res to 800x600 so it didnt eat a lot of desktop realestate.
Every app open, every utility open. I consider utilities apps because when I click them, something happens. I only didn't open Colin McRae because it's full screen, nor frontrow, as it, again, is full screen, and the same for Frets on Fire, which for whatever reason, never launches, just stays at a black screen, and when I push escape, a little window tells me that OSX got greedy with the cursor control, and I can fark off.
Edit: Please don't e-castrate me for posting it full size. I didn't think imageshack would keep the aspect ratios right, and iPhoto and I aren't on speaking terms.