Expensive, and it probably can't move the packets fast enough to justify having it, but the Apple Airport Extreme has:
a) 3 port gigabit local-side hub
b) Gigabit WAN port
On the wireless downside it won't let you do plain WEP networks - WPA or "transitional" WPA/WEP that I never got to work right, so you're SOL on old wireless gear. It also doesn't have a clone mac address option for the WAN port which is irritating, but it turned out I didn't need this anyway.
My cable modem connection in Cambridge is going seriously flaky when pushed, but I believe that's the 3Com CMX finally giving up the ghost. Any piece of equipment whose *power led* fails is obviously due to be replaced

What was most annoying was that though I *paid for* the modem - there was no free or subsidised modem offer back then in the early days of UK cable modems - NTL/etc refused to give me a new one unless they could send an engineer round to diagnose my current modem (who, no doubt, would have said "oh, it's working fine" as it only drops out when you really saturate it - again since they moved me to 20Mbit). They asked what model it was and got very confused as they'd never heard of a CMX...
Anyway, oh for decent speed internet. DSL here is still 1.5Mbit max, though cable is 6-10ish!
Hugo