Short version: What is the absolute minimum footprint driver circuit (NOT
SMT) that will work from an Open Collector output with a 4.7K pull up to +5
(PC parallel port nStrobe pin) and drive a small OMRON G5LE-1 DC5 which has
a 5 volt, 63 Ohm coil?

Long version:

I have a PCB that I would like to squeeze a bit more functionality into, but
I have almost no real-estate available. I've managed to put a PCB mount
relay on the underside of the board (with other components on the top) by
fitting it's few through hole leads in between other stuff.

What remained was a drive circuit for the relay. Piclist.com has a great
page for PIC relay drivers at
http://www.piclist.com/techref/io/relays.htm and what I think is the best
page on the PC parallel port bar none at
http://www.piclist.com/techref/io/parallel/signals.htm  

However, the quick and dirty single transistor driver from the relays page
http://www.piclist.com/techref/io/relay5v.gif  will not work with the actual
PC parallel port outputs as specified on the parallel port page. It does
work with a PIC, I verified that, but the PIC has a lot more drive than a PC
parallel port pin... Especially the pin I want to use: nStrobe, which is an
open collector output with a 4.7k pull-up resistor.

There is another suggestion on the relay driver page that looks promising
for a very small footprint solution: 

            +24
             |
         relay coil
             |
           drain
  +5  ---- gate      N Channel Hexfet
 control   source
             |
            gnd


But there is no sample part number or other details. I spent some hours this
weekend searching the net for N Channel Hexfet examples circuits, hoping to
find something where one was used to drive a relay or used to drive
something like a relay from a PC parallel port and came up empty.

I would really like to avoid all the extra holes and space for a resistor,
diode, etc... In addition to the drive transistor.

If you are curious, the circuit is for the next version of this kit and PCB:
http://www.piclist.com/techref/io/stepper/linistep/4axis2build.htm which is
darn fine in most other respects... The first version (which I am now
selling) works nicely for the other functions (other than the relay driver).

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