[SpEEdyBL]

It's time well worth spending. You'll find that lipo is actually cheaper than nimh in both the short and long run. A Zippy flightmax 4s 3000 mAh 40c lipo setup, which is what I will be using (just came in the mail) will blow away any nimh setup by far, will have similar runtime (enough for 10 min main), can be charged in less than 12 minutes (with a powerful enough charger), is 13oz, and cost $37 for the pack itself. If you don't mind spending about $15 more you can get a slightly heavier 4s 5000 mah for the 15-20 minute mains. There are plenty of options from hobbycity.com.