Philips sells Polish made halogen light bulbs here in Australia for around $3 each (US$2.40) while Osrams are slightly cheaper. These consume 30% less power (70w instead of 100w) with double the lifetime of a traditional light bulb.
I love CFLs as nothing in a reasonable price range is as efficient. The payback period is only a few months. However, CFLs take a little while to heat up (up to 30 seconds) and don't react well to frequent power cycling. Therefore I use 240v halogens in bayonet format in some circumstances.