Help (again) iBook freaking out! Vid card prob.?

iBook stopped responding to mouse, keyboard and the screen started flickering randomly, it was bad. Tried plugging into an external monitor... nothing. Finally I just took out the battery...
Could our magic logic board have finally bit the bullet?
It is a hand-me-down, and I believe this machine has gone through a few logic boards in the past.

Oh goodie. its a dual USB. now it wont power up. Its not even accessing open firmware... no startup chime. I tried to boot it into target disk mode and nothing... How much does Apple want for a new logic board?

Thanks. Just got off the phone w/ Apple. It qualifies for the repair program.
The only problem is they want $49.95 for the phone support. No way, Im taking it to the genius bar.

By the way, does anybody know what the process/turnaround time is for this sort of thing? Do they wipe the HDD?