I like my current setup (in sig) for size/weight reasons, but I'm thinking about getting a 2.8 standard zoom as a 1-lens setup for upcoming travels. There's the Panasonic 12-35 for $900 or the Olympus 12-40 for $1000. The problem is, the 'value shopper' in me says I can get a DSLR body (refurbished D5200 or D7000, or new Pentax K-5 IIs) plus a new Sigma 17-50mm for the same price, due to mid-year sales. I thought I'd swore off DSLRs forever, but when I can buy the equivalent lens for literally half the price (I used to own the Sigma and it was excellent), I have a hard time putting that much money down for the m4/3 lens. Any thoughts? I think I've forgotten how big/heavy a DSLR used to be (had a D5100/17-50 and 6D/24-105 but sold them). Thanks.