Upload & Sell: On
+1 on the Lenmar batteries, really like the RRS L bracket too, that needs a good ballhead, like the RRS products for that also
i use the Eye Fi SD cards for wifi transfer if that application is needed
glass is where i would spend as lavishly as you can - if you can invest in good glass, it will carry over through several bodies
focal length somewhat dependent on what you are concentrating on...
i started with a 50 1.4, added the 17-40 next but i needed wide
70-200 one of the best lenses i own, i have had them all and loved them all, the new II series is noticeable faster focusing even on the 1d2, but it is pricey, and hard to justify the additional cost unless you are producing income from the purchase
24-70 is the lens that stays on most of the time, 135 is a favorite for event work
been shooting the 1d2 for 5 years, through a new shutter replacement, and have loved it - studio, landscape, event, wedding, sports, print on a Canon 44 inch 8300 printer, no complaints, would love more resolution for larger prints, have been stitching when i know i will print big ...
hope you get as much satisfaction as I have out of this jewel - i had a 20d too, and the jump up is significant - 1 series rules!