<< Drive a possibly unsafe car and hope everything remains fine. >>
I don't really think your car is unsafe. Perhaps the ABS pump is going out. I think if abs was feeling weird adn I didn't like it, I'd look in the fuse box, pull the abs fuse, and drive it. None of my cars actually have abs. It also may not be that your friends are trying to deceive you but perhaps they are just unsure themselves of whats wrong. I'd take a last ditch chance and see someone like a dealership and get an estimate. Ask them specifically what parts need replacing and the prices and post back, we can help tell you if they are fair prices.
