CPO warranty

I have a 2006 750li and my CPO warranty is about to expire in July 2011.
Recently I had sooo many electrical problems in my car, that it has been serviced for last 3 weeks. It started with a dying battery, which was only 1 year old, then a problem with a door lock, and back to dying battery. It's such a long story that I don't even want to get to all details but BMW service included multiple draw tests, battery replacements, door module replacements, searches for draws, battery tests, etc...
Finally I got it all fixed and fortunately it was all covered by my CPO warranty but what if it wasnt...
now to my point...
My warranty is about to expire in 6 months. Any ideas if I can extend the warranty somehow, either at BMW or some others that advertise online? I want to keep my car at least next 2 years so I would rather pay for the warranty than be worried...
What would that type of extended warranty cost me ?
Please let me know if you have any ideas.
I appreciate it...

Go ask the dealer that fixed the car what they accept and what they have to offer, Figure it will run you 2-3k for a decent warr. I have no reco's unfortunately.

BMW will not extend the warranty, but you can price and purchase an aftermarket one.