Well, I've joined a couple of other forums on old cameras before I bought mine (Polaroid 360 Land Camera), and the general consensus is that even in good working order, between $20.00 and $30.00 is a fair price. Mostly because folks can still buy them at yard sales for a buck or two. Now having said that, sometimes you might have something that someone REALLY wants, and they'll bid pretty high on eBay for it. I saw a couple of lenses go for $90.00 when the week prior I bought two of them for $9.99. I'd say ebay or even a little antique store/camera shop would be able to tell you what you can expect to get for them.
By the way, if you happen to have a Polaroid Close-Up kit #583A, send me an email. :-)
Yeah, from what I've seen, there's no real market for old cameras. I was trying to sell my medium format Mamiya RB67 and I heard crickets....so, I've decided to put it on my desk as a display...along with an old radio, and maybe I'll find an old typewriter too...
I think that Brownie Hawkeye should be around 50 or more...
And if that Hasselbad at the bottom is in fact one of yours, well, those things can fetch quite a bit of money... Like around 1 or 2 grand.
The second photo, the TLR, should be pretty valuable too, like 100-200.
As for the polaroids, I'm not so sure, since they stopped making film for them, they might not be as valuable as before.