Well, an 80lb drill press is pretty small. Even the Busy Bee benchtop model I've used for about 30 years is heavier than that. It may be fine for some of your wood working but even then I wonder how often you'd be better with something larger.
First off get one which uses a MT2 taper quill so you can change out chucks easily. This also sets the size of the head to something more heavy and robust so by considering such machines you automatically move up to a nice mid weight size option. Second is to look at the diameter of the column. If you have the choice between two models get the one with the bigger column diameter.
Floor or bench depends on you and your room situation. There's a lot to be said for a bench top model sitting on a reinforced kitchen cabinet drawer lower unit so you can store drills, chucks, vises and other "stuff" used for the drill. And a good size bench top drill press does not impose the sort of limits you may think. At least I only rarely wished for more spindle to table room in over 30 years of using my own.
Since I'm now splitting up my metal and wood area I've bought a second drill press. This time I went with a floor model and did not buy from Busy Bee. I find that the BB options are all too light in the middle weight group and have too small and dainty a table. As it happens I got a King brand model from KBC when they had a big sale on. It has a 3/4 hp motor so I wired it for 220V. But now that means I need to rewire the light for 110v which I haven't done yet. Size wise it's got the same good and heavy head unit and column diameter as my old Busy Bee drill.
An equivalent, near as I can find, would be this General from KMS tools.
http://www.kmstools.com/general-international-17-floor-drill-press-2211
The 13 inch models from both General and King that I saw had too small a column and too small a table and too short a quill stroke. So this one in the link, or the equivalent King that I got, is what I'd suggest for a lifetime sort of tool.
I should note that I've got an issue with the length of the riser rack. It's too "sticky" where it fits in at the base so it binds when I go to turn the table. I've got a modification in mind to add a roller at the base and to shim the notches in the table mount casting to support this better. It's a pain to do but such is life with lower cost tools. The General "should" be better on this aspect if you don't mind paying the extra $70 to $90 that they cost compared to the $329 I paid for my King on sale.