best simple 1U server to purchase?
nwatson: Before you buy your servers make sure the "4U" space is really all about space and not about power consumption.At Hurricane Electric in bay area California you can rent sub-rack space that could hold, say, 8U.  However, if you try to fill all that space with SuperMicro high-density 1U systems you'll far outstrip the power they're willing to supply for the rental rate.I don't know about your colo's policies but please double-check.