SUBMAN, there isnt much to argue, anyway here is what the circuit basicaly would looks like, grossly simplified ofcourse, I should have done this as the first thing, but nevermind that for now.
http://img248.imageshack.us/img248/4...essenseff0.jpg
As for what to do for Cmos clear id recomend you just use the jumper method while leaving the batery in place, but it definately wont hurt to remove it, it is however a redundant step.
Edit:If i misspel circuit one more time im going to slap myself silly