Just to let you know ajmall, Ive just bought a Rolleicord Vb at weekend from
ebay.
It cost £65 (~$120) and its in really good condition. Optics are clean, not a scratch on the case. Just need to run a roll through it to make sure but im quite confident.
You can go cheaper and more expensive depending on condition. This is quite late in the Rollei range of TLRs (by my understanding - i can be corrected) but personally i think its going to be ideal to start off with.
Has all you need (a shutter and lens cover is about it to be honest!). You will need to get a seperate light meter but you can pick these up for peanuts as well.
I also looked at a Yashicamat and the Yashicamat 124g (this has a rudimentary light meter but from advice i have been told this is only an estimation and shouldnt be relied on too heavily). 124g have been my preference but I was too eager and didnt see any coming up for my price range.
Also have a look for later Rolleiflex 2.8 and 3.5 models.