Like greenacc said, Powerbulbs is the best place to get your Halogens if you can wait the 1.5 weeks for delivery. They often do 20-25% discount promotions so stock up then.
It can be difficult to decide which is the best bulb to get for lighting and/or visual performance. Personally, I'm only interested in usable light output and quality throw on the road without blinding other road users. The manufacturer's all schpeel their marketing dribble and YouTube reviews can be very anecdotal, so it's hard to know what's really going to work for you without spending the dough to experiment.
Alas, help is at hand!... I discovered the BulbFacts guys recently who have a decent methodology for comparing aftermerket Halogen bulbs to OEM Halogens. The link below is to the summary of their Halogen bulb comparisons. Sort by whichever header is most important to you. For me, sorting by 'Peak Brightness/ Distance' is the most telling about the capability of a bulb. And interestingly it confirms my experience in experimenting with Philips and Osram Halogen bulbs.
http://bulbfacts.com/#chart