I've got the Shen Hao HZX. I bought it in January, and it's the first LF camera I've touched, let alone used! For this reason, I don't have anything to compare it to weight wise (hey, what's an extra pound or two?), but I do alot of hiking, (snowshoeing too, but you won't have to worry about *that*) and cycling so my concerns were similar to yours. I seem to be fine with it so far. I chose it over the shorter drawing FCL because I didn't want to limit myself- I photograph pretty much anything (from macro to landscapes to architecture). It seems very stable, and pretty intuitive to use (although there are some clips on the back I can't figure out a use for....), and easy to set up. I haven't gotten much into swing or tilt photography yet, but it seems to have everything possible as far as movements go for a field camera. Lots of bellows draw (I think it's about 33 inches- but you can find all this info on the web). Considering the quality of this camera for the price, I can't imagine the need to get anything else (but like I said, I'm very fresh to this stuff). I can definitely say it's the 5x7 to get for a 1st time LF-er, but you may want to take your advice from the more experienced shooters here who have used a number of cameras in the field.
I only have one lens for it so far- a 180mm f/5.6 Sironar N. I like it, but I'm more used to a true normal lens (would be about 210mm) from shooting 35mm. Overall, I think I made the right choice in going with the "wider" normal though, because it's probably the most versatile. I just need to adapt to it. I'd love a 210 as well, but I can't justify spending the money on something so close. Maybe the next one will be 240mm.