HA! That machine is in PRIME shape compaired to what I had to deal with on my A500 (which I borrowed and never returned for 2 reasons to be named shortly)!
I've had to clean this machine up from the brink of death TWICE! The first time, this friend of mine needed a some games for it. He brought it over and I nearly had a heart attack! This machine was brown... Not white, not yellow... BROWN. Looked like he'd stacked moldy pizza on it and spilled his bongwater all over it. I was afraid to plug the thing in!
So I tore it all apart, spent HOURS scrubbing the hell out of it... Scraping the goo out of the keys, and all the little crevaces of the case... Total motherboard detail with a soft toothbrush and the last of my freon.
Got it all shiny yellow again. Tried out the games he ask for, everything was great. Told him not to ever let me see that machine in that shape again or I'd kick is butt and take it away.
A few months later, I came into some DOA A1200 boards from Ebay, needed a PSU to test em out. So I borrowed the A500.
Sure enough, the thing was a wreck again! Bongwater city. I could have plugged it in, put a towel over my head and gotten stoned for 3 days from the resin smoke.
This time, I held onto it long enough for dude to end up moving away. Not that he would have gotten it back anyway. Damned Miggy Abuse!