Gibson
The small drill press at the first link you posted will do much of what you need.
Especially if you drilled everything by hand, that will make a huge difference for you.
You will never regret it.
I am sceptical about the horsepower rating on import motors, but a stated ½ HP is better than the stated 1/3 than I have on my first drill press.
(Delta - smaller than the above and still useful, but table will flex if I put heavy pressure on it)
Spindle taper: MT #2 - is a good thing
This means that the spindle shaft is a number 2 Morse Taper
http://en.wikipedia.org/wiki/Morse_taper#Morse
The significance is that if you want to replace or upgrade the chuck to a precision or keyless chuck later you can with a simple standard part. Whack off, Whack on
(small drill bits used in folder making 0-80 screws
need a precision chuck to hold the very small bits. chuck rated to Zero minimum size whereas this one goes as small as 7/64)
(Small bits -tend to break if used in chucks with a bit of wobble precision = no wobble)
The advice to go with a floor model is quite good. Bench space is always at a premium.
It is easier to find floor space versus bench space.
The other suggestion I would make is to purchase ViseGrip type holddown clamps
Harbour freight and Grizzly likely have knockoffs like these
http://www.justclamps.com/Graphics/drillpress_clamp200.gif
Clamp your material down to the flat table with flat scrap backing material (mdf board, micarta
)
If you leave this on the machine, they are very quick and you will use them.
There is a tendency to do a few quick holes without clamping, the drill will catch and spin.
You will try to catch the work piece. You will hurt yourself. (Ask me how I know
The larger the hole, the slower you run the RPM speed. The speeds listed are fine.
Sharp bits are necessary
Take the extra money you saved, buy bits just for steel and keep them away from composites and general household use
As for needing more spindle travel depth for a through tang, you can work around that by:
Drill the 2 depth, stop the machine, clear chips out, put the drill back in the hole, raise the table, drill 2 depth
repeat
The key is having a drill bit with long enough flutes to clear chips from the full length of the hole in the material.
(Known as long series, extended series, from machine shop & good tool suppliers-thry will help you with good bits also)
I wouldnt worry about wearing it out, unless you side-load the spindle bearings by feeding material into it sideways by using it as a milling machine to mill slots with an x y table
You wont wear it out in your lifetime.
Steve