With a property shoot coming up, which generally provides a great opportunity for stock library shots, I have got myself a Panasonic 7-14mm zoom again. Since I will be working in fairly restricted space I need the widest I can get.
The 7-14mm is an amazing lens, and gives a fairly unique "world view" at 7mm.
I didn't use my last one much however and eventually sold it. This one may go the same route, but while its around it will certainly produce dramatic pictures.