i got mine from whiteflash.com they have an excellent reputation and were cheaper than going to any local store that i looked into. kiplinger.com also endorsed them in an article
whiteflash
what i liked about them is thier online site lets to see idealscope and it looks like they've added Aset (no idea what it does) but the idealscope view showed reflectiveness or shine supposedly 8) I think i worked with Jamie, its been a few years so that may be wrong though.
cust service was great, any concerns or questions they were willing to answer.