Hi Adrian,
I had one of the cheap B&Q drill presses until recently when I bought a new Sealey. premier range. on Ebay.
Its big, heavy and its powerful and accurate,,,,absolutely fantastic and at £140,worth every penny.
The small cheapos tend to struggle with spade and forstner bits patricularly in hard wood and also the height and depth adjustment is very limited so treat yourself and go for a good one from the offset, you wont regret it.
I looked at the axminster model ED16B and ND16B which I would have gone for had the Sealey not come along.
Beejay