I'd like take some panoramic shots with my DSLR and stitch them together in Photoshop. I will eventually buy a dedicated pano head such as a Nodal Ninja, but for now I'd like to keep things simple and use a general purpose head. I have a Manfrotto 3221 tripod--what kind of head, 3-way pan head or ball head, is best suited for pano work? Any recommendations as to model/brand? My budget is around $150-200 max (I'd like to keep it closer to $150) and it needs to support a DSLR and lens weighing around 5 pounds.