Thanks everyone for your responses.
I'd love to get an old drill and take some time cleaning it up, as I know the old British drills are worth waiting for.
Unfortunately, my health doesn't warrant travelling too far or breaking my back lifting up an old second-hand monster, plus I need something soon to finish off a project. So unfortunately having to look at the Chinese clones.
I've taken a look at many drills online and based on your comments ruled it down to the following (and have increased my budget slightly):
Clarke CDP152b:
Clarke CDP152B 12 Speed Bench Mounted Drill Press (230V) - Machine Mart - Machine Mart
Record DP25B:
Record Power Bench Drill with 22' Column and 1/2' Chuck
My father had a Clarke, which lasted a long time, not sure how good it was, he was an engineer so would have returned it if it was no good. I have a Machine Mart not too far away, so have the benefit of taking it back if I have any problems.
The record looks pretty similar, but comes with a 5 year warranty and looks like spares are available. Yandles seem like a decent company from what I can gather, but don't have the convenience of a local shop.