A guy just came in that knew these things well. I think he said the tube was done. I think the rest of it is good. That being said, where should I go from here. It is bleeding and the colors are starting to go. I still have red, green, and blue though.
First, tell us what monitor it is, and take a picture of the screen. If it's a K7000 (common), they were known for the tubes going weak (especially the Zenith branded ones).
A weak tube can be "rejuvinated" with a picture tube tester, zapping the contaminents off the cathodes and making the picture better... but it's hit or miss - might fix it, might not. Any TV repair shop should be able to do it for you.
If the tube really is done, then start looking around on trash night for 25" TV sets. Take the back off and compare the neck connector with the one on the arcade monitor. If it's the same, then unplug the yoke connector and measure the horizontal and vertical winding resistance, and compare that with the arcade monitor's yoke. If they're pretty close, then you should be able to just swap it out (might have to change the plug on the yoke).
Do some reading on monitor repairs in general - there is a big long sticky thread in the Monitor section on basic arcade monitor stuff (it was written by some loser with way too much free time), that covers the basic theory, what parts are what, how to discharge, etc.
It's not hard to fix it yourself, and leaps and bounds cheaper than buying a new monitor. But be prepared to do some reading, some learning, and some work. If you just want to go the easy way, buy a working/rebuilt monitor from someone here, and trade/sell/give away your old one.
But first, give us some more information on your monitor, it might not be the tube. We'll want the model number, and a picture of the screen to see what it's doing.
-Ian