I stand at work, but only for half the day, I sit the other half. Sitting annoys the piss out of me, but standing all day does too so this is a nice compromise for me. I sit on the trains when I commute, and unless I'm working out, I also sit in my spare time most often than not. I find that standing half the day at work is relatively easy, makes me more prone to walks around the office and just gives me some peace of mind so to speak about sitting at other times.
I feel you entirely on the BAS. I NEVER make salads, I almost always cook my veggies. If I'm eating a salad, I mostly likely paid for it, and only because it sounded too awesome to pass up - and of course it's got some meat on it.
Losing body fat to me is more a consequence of my training and eating style. I've never been under 10% but I'm always on/off with working on it - right now I'm on, so trying to watch what I eat a little bit more. I don't make it my everything, and it's not really THE goal, like I said - it seems to correlate with how I'm doing in the gym and with my food. I don't want to have sub 10% BF from being on the elliptical or some shit, but if it comes as a result of gaining strength then I welcome it.