I can't seem to find any decent (not too expensive) Wifi SIP/IAX/h.323 phone handsets. I'd kinda like to replace my crappy "curtis" 10$ piece of crap

And since I have Asterisk running my home phone now, I can use just about any sort of phone (including phones that need a cord, I have a SIP adapter, but Id still like cordless handsets, hopefully ones that allow multiple lines).
Could you guys suggest something? I haven't had any luck so far.