I bought the CoolBlues at Checker, I don't know if they are that far east though. AutoZone carries Sylvania though.
The yellow ones I got from a small rice shop in my town. I bought the 100w bulbs off the net, from
autooptiks.com .
Hope this helps.
Edit: Oh, the bulbs were about $20/set. I got the CoolBlues on an employee discount so they were WAY cheap.