<< I think MigrateZone might be affiliated with UpgradeZone, which is also here in nothern Virgina >>
Both companies seem to have the same zip code in Arlington, but, at least according to the whois, the parent companies have different names and street addresses. I ordered 3 sticks of high density memory from Upgrade planet before and although it came rather underpackaged (in an envelop, as I recall) it worked as advertised and is now happily plugging away in three different Duron machines (an Asus A7V, a Biostar M7VKL & a MSI K7T Pro2A).
Anyway, I ordered 2 sticks of 256 MB high density from MigrateZone for $22 each plus $10.99 S&H. The total came to $54.99, 10.74 cents a MB. The first time I tried to order I didn't get a "You have succeeded in ordering" message and never got a confirmation email, so I tried again the next day and did receive a confirmation. I hope I don't end up with four sticks, though I'm sure I could palm the surplus off on my buddy with the K7T.