So after tossing around the idea of this lens and an older nikon afs, I ended up ordering the 120-300 2.8. That's all fine and dandy, it will be here in a week or two..... But my next problem is what the heck am I going to hold it with. The head I have on my tripod and monopod does not even hold my 70-200 stable enough. So what are you using to hold large chunks of glass? Got a recommendation or a picture of you shooting?