Good name. I'd say around $3k-$5k reseller. It's not really a common dictionary word. I'd rather call it a less common geo LLLL.com. Great LLLL.com either way. It's very brandable as you say and it's easy to remember, even though I would've typed in "ZULU.com" if I heard it on the radio (from the Ghostbusters movies).
Thanks. Not a common word, for sure (unless maybe you're a Trekkie or a Filipino); but I wouldn't trade it for many of the names on the four-letter-dot-com-sales list.
I think this is definitely an xx,xxx name. Memorable, very Web 2.0, and ofcourse has lots of meaning to the large fan base of Star Trek. Could be a cool sounding brand name for almost any kind of product.
SU also = Sudan, Stanford University, Syracuse University, Stockholm University, student union. The LU is more difficult, although there is Luxembourg. So, for example, Student Union Luxembourg. There's also a SULU that's defined as Samsung Uproar Linux Utility, whatever that is.