*This post might not be interesting to most, but if anyone has computer/mac experience I'd love your advice!
If my laptop at home were a person and had a face, I would have punched it days ago.
We are in a fight.
Basically, I want it to work as it has for the last two-and-a-half years, and it just wants to play with ColorWheel.

I HATE ColorWheel! It's been my constant companion for most of the last WEEK!
Last Thursday, I videotaped the last dress rehearsal of my show (it's legal because the script's in public domain and it wasn't an official performance anyway). I forgot how long it takes to download a video of 2+ hours. Unfortunately, it takes about 2+ hours, and I didn't want to stay up until 2 a.m. Thursday night. So, I let my computer download until its usual time for shutting off (you know, to save power).
Well, when I woke up the next morning and rebooted the machine, ColorWheel had appeared. I didn't worry, because I figured the machine needed to reorient itself. I went to work... went to a show... came home after midnight and turned the machine on again... and ColorWheel was still there, which I took to mean that it was still downloading the video (even though the countdown on the downloader wasn't ticking down). I stayed up with it until 2 a.m. but didn't see much of a change, so, again, I went to bed.
Saturday morning, first thing, I turned on the computer, and saw that the video had failed to download. There wasn't enough memory on the machine!! I spent the bulk of the day finding my external hard drive, backing up ALL of my files, and deleting a ton of photos and videos and other things while I listened to
General Conference on the radio (that's what happens when you don't have cable t.v. and your computer won't cooperate -- hooray for reliable old-school media!). I tried downloading the video again, and at least when it failed the second time it happened fairly quickly.
Sunday was spent much the same way: deleting already backed-up videos and photos I thought I could live without. Then I tried to upload the video for the third time -- this time I succeeded!! Hallelujah!
Finally, everything seemed to be fine. I watched the first act of my show, caught up on some other t.v.... life as usual.
And then Monday happened. I booted up my computer, but anytime I tried to do anything my old pal ColorWheel would show up for awhile. Any video I watched on Hulu would take forever to load, show 15 seconds, and then fail.
So, I did what any rational, slightly clueless person would do.
I restarted the machine.
BIG MISTAKE!!!!!
It took 2 days to reboot. TWO DAYS! And it didn't shut down to save energy because technically it wasn't even on.
Monday night I started yelling at Mac. A lot.
Last night it finally booted up -- I was so relieved!! I deleted a ton of stuff from iTunes and then emptied my Trash can. Then I tried to watch an episode of Smash. It didn't even get through the "what you've missed" section before a pop-up appeared to tell me I'm out of "application space" and had to shut down a few programs (that pop-up is the other bane of my existence). I closed down iTunes but left Safari up so I could try to keep watching the video.
ColorWheel has been eating up my screen ever since.
I feel so helpless! It's been a week, and I am waaaaaay past lost patience. I can't do ANYTHING! No internet, no weather.com, no t.v., no online journaling... granted, I'm making great progress reading my latest library book, but this is
so frustrating.
Any advice? I bought it in September of 2009. Is it just old? It has been getting slower and slower the last few months. At this point, I'd fear it has a virus, but it's a Mac computer, and aren't viruses on those pretty rare?