I also haven't had good luck with Republic of Tea's white teas. If you want inexpensive loose white tea, Upton Tea Imports has some interesting offerings.
I generally avoid bagged tea but if you are going to go the bagged route, Foojoy and Ten Ren both sell some palatable white tea in teabags. Foojoy's is absolutely dirt cheap and is really not bad for what it is. Ten Ren's white tea in teabags is average in price, and it's a darker white tea, I think about as good quality as you can find in teabags unless you buy a high-end brand that packs whole-leaf tea in pyramid bags (and these tend to be really overpriced).
I am very partial to the loose stuff, however...and there are many more good options there.