Terminal server advice

Hey all! I'm planning to upgrade my home network at some point in the not-too-distant future and I'm trying to figure out what to do with my serial-terminal-console machines. Right now I'm using a decserver 200/mc to connect to them, but its always been a little fragile: It doesn't seem that most switches understand MOP (so it won't boot) and requiring a lat client leaves a lot to be desired. The connected serial terminal works great but parts of me are wanting to move to something that takes up less space and is more tcp/ip friendly. What is everyone else doing for this? Just a back of the envelope count looks like there are around 8 serial-consoled machines. I've thought about using usb-to-serial adapters but that seemed kind of hacky. The machines are a mix of OSes, and some of them are Suns, so the break/disconnect signal is always...amusing. If I can ditch the mop requirement I should be able to get rid of my aging (and noisy) hub and move everything to switches (since I don't use decnet either) Anyone have any suggestions? If I can get a reasonable solution I'll probably get rid of the pair of ds200's I have (one with skins and the other without). Brian