OK... I currently shoot stills with a K5, K3 and Q7 with a variety of lenses, to 300mm (multiplied by crop factor, of course). I have a very decent Giottos tripod and ball head, and the latter works fine with my smaller/shorter lenses... however, I've a couple of physically longer and heavier lenses that make the ball head less than ideal for accurate positioning - the amount of movement at the business end of the lens, and the droop after locking the ball head in position, make it tricky at best to acquire my targets. Although I've never owned one, I believe (from what I've read) that a pan & tilt head would suit me better, and I've been looking at a budget "Velbon PH-157Q 3-Way Head" that seems to get decent reviews. Firstly, am I looking at the right *type* of head, for what I need, and is the Velbon PH-157Q a good choice at the budget end of the market? I don't spend a huge amount of time at longer focal lengths, so I'd prefer not to spend a large sum unless absolutely necessary (though I have some flexibility). If the Velbon isn't a good choice, what might work well? Thanks in advance