If anyone is interested, I just received a 2nd battery for my N900 that I ordered from dealextreme. I have in the past received the knock off ebay batteries, and was rather disappointed. Therefor I endeavored to located a real, actual, genuine nokia battery for something less than the $60 that nokia wants. I was successful, mostly from a thread on these forums I read.

http://www.dealextreme.com/details.dx/sku.32444

I have checked over the new battery very very carefully, and I am absolutely positive it is a legitimate nokia battery, just like the one I got with my phone. It charges up full just like the other, and the battery indicator works with the battery (the knock offs would show full until almost drained). I also checked every tell I could find online for legitimacy (hologram, printing, numbers, languages, barcode).

I will probably order another battery from them, cannot be beat for that price to have a genuine battery (2nd or 3rd battery even). This way, I do not have to make my device fatter, but I get more capacity by swapping batteries. I should be able to use my device all day long with heavy constant use now. I also ordered a cheap desktop charger off ebay, so that I can charge a battery outside my phone, as a bonus it has a usb port that I can charge my phone with, while I charge the 2nd battery at the same time.