Enternet has got to be the worst written piece of junk I've ever seen; I don't know why all the ISPs use it.
I had it for the first 9 months that I had a DSL - then I found out that by using a hacked firmware, my DSL "modem" was actually upgradeable to a fully functioning router. It's been great since then. If you've got an Efficient Networks Speedstream 5260, I'd suggest you try it to - I can provide links.
Basically, Efficient couldn't provide enough 5260's for the market, so they actually used 5660s (which are routers), and turned off the router portion in the firmware. A simple firmware hack, and your 5260 can become a fully functioning 5660 - but only if it's one of the masquerading 5660s to begin with. You have to check the part number to be sure.
EDIT:
Animosity, what exactly is it you don't like about a router? I'm not trying to be a pain; I'm just curious. Pretty much all of my friends use one, as do I, and aside from having to occasionally configure NAT, I haven't seen any problems.