Thanks Smooth, as I am new to this I guess I would like to take as fewer shots as necessary so I am guessing that the Sigma 8mm would be my best option.
Am I right in thinking that all I require is
A) The Camera - possibly D300 a good option
B) Sigma 8mm Lens
C) A Pano head/rotator
D) Decent Tripod - i.e Manfrotto
C) Stitching Software
D) Possibly HDR software for merging bracketed shots.
Am I missing any fundamental parts/accessories in my shopping list?
Thanks for the input.