Thanks for all of the replies.
I really appreciate it. Also, thanks for the welcomes. I've been lurking for a couple of days, and this site and it's members are are really helpful. This has been an extremely valuable resource for me, as I've upgraded my mini-mag lite w/ a Nite Ize LED (cheap mod I know.. but very cost-efficient), and look forward to upgrading my Mag C and D lights w/ drop-in TeraLux LED's (or Mag LED's, if current Mag's will be upgradeable to LED, with a drop in Mag LED. Anybody know? ).
If a retail outlet nearby stocked TerraLux, Diamond, or other comparable options, I'd love to be able to go in, and "shop around". I'm holding out that something like this exists around here, but if not, I guess I'll have to buy on-line.
That all-battery place would be nearly the perfect answer, if they sold LED upgrades. Another on-line resource, with a local address (w/out will-call option) is County Comm. I called them, to find out, their address, down the street from me, only takes orders and hosts their site.
Actually.. LumiLeds is in the valley, I wonder if they have a company store, open to the public??
Thanks again.