hey, been shooting with a d5000 for a while, love it. i have recently been lookin into getting a grip for it and some batteries. first with the batteries, i'm having a hard time finding the el-9a battery. while the el-9 batteries seem a dime a dozen. my question is what is the diference between the two? i know the EL-9a that came with my camera is a 7.2v 1080mAh. could i use the EL-9 bateries which are 7.4v and i think 1800mAh, without damaging my camera? and for the grip, what are the good one's avalible? any one seen or used this one?? Battery Grip for Nikon D5000 Camera * 2 EN-EL9a B2V - eBay (item 330357272244 end time Mar-01-10 19:57:51 PST) it's vertical shutter release button works by way of a cable instead of the IR stuff, seems much better. any input is welcome thanks!