Having looked all over the internet for an independent, third party company that makes a vertical grip for my a65, I've finally found one. It may not look the business but I'm sure it's better than nothing.

http://www.ebay.co.uk/itm/Ownuser-Ba...ht_3754wt_1270

I'm planning on making my own using an old a200/a300/a350 grip (the 'Meike' ones) and a wired shutter release that will be soldered to the switch. Inspiration taken from here - http://www.dyxum.com/dforum/topic828...0.html#1015010

SO, there you have it. A vertical grip for the a65.