Dave, a few thoughts — consider what you intend to use the machine for and up to what hole size you are likely to drill. Also floor standing or bench drill, floor standing gives you greater capacity and for some things greater versatility
Also consider the speed range, many drills are far too fast for larger drills and for reamers in general, for this reason its worth considering a machine with a geared head [back gear] imported ones in particular fall into this category.
Lastly the spindle taper, be sure it is at least number 2 morse or even number 3 unless of course you intend light high speed use.
Personally I have a Meddings MF4 pretty old and has a few battle scars – not mine – but Meddings were very good with spares for such an old machine but keep in mind not everything is available.
Just my three pennyworth hope you find it useful John