My computer is sick.

Here's the long, stupid story:

I decide to switch DSL ISPs from SBCYahoo to Earthlink.

I receive a new DSL modem (as if I need a new one) and connect it, but can't access anything on the Internet. I call Earthlink tech support. After 40 minutes of redundant software configuration, reboots, port checks, and re-plugging, the tech asks about the lights on the modem.

Neither the DSL nor the Activity lights are lit, nor have they ever been lit. So it's a hardware problem. The tech asks me to do some useless phone line reconnection, which of course ends the call. I'm too wiped out from crawling around on the floor behind the furniture, messing with dusty electronic spaghetti to call back.

Next evening:

I hook up my old DSL modem and reset the configs, but still no 'Net. I attempt dialup (for the hell of it) with the internal v.90 modem and dailup configs. No 'Net. I redo the DSL modem setup. I call SBCYahoo tech support, because I haven't cancelled them yet.

I mention the unlit lights. Is there an outage?

The tech (who sounds like the exact same tech for Earthlink) pings my modem and says that there's no signal, and that there's therefore an outage. "Engineers are working on it right now."

The next two days, still no 'Net, no lit lights, no nuthin'.

THEN I MAKE THE GRAVE ERROR OF INSTALLING AN "INTERNET WIZARD" FROM THE EARTHLINK CD-ROM.

It tries to connect to the 'Net via dialup while I have the DSL modem system active, and the computer freezes . Upon reboot, I get "System bus error -10". I have to restart without Extensions.

I've run Disk First Aid.

I've rebuilt my directories with Disk Warrior.

I still get the same error message at startup.

I can't afford to buy a new computer. I can't afford NOT to have a computer.

I'm staying after-hours at work to go online to check my email.

Does anyone have a used OS X Mac for sale?