I have a pretty simple recording facility set up at home comprising a couple of large diaphragm condenser mics, one cardioid the other switchable omni/cardi/figure 8. These are hooked up to an Alesis interface and from there to a PC running the Reaper DAW under Windows XP.
I have the mics rigged mid/side for recording my SAAT quartet, decoding with the Voxengo MSED plug in, but I also do some solo recording, and in the context of your question, I sometimes record all the parts of some of our quartet titles myself, just for fun. I do this standing in front of a music stand set to a height which is comfortabe to read from. I then set the mic boom up so that the mics are just above the top of the music stand and pointing down at an angle of around 45 degrees. When I play the sop part the bell of the sop is actually below the bottom of the music stand, (I've cropped this picture to show what I mean), but it doesn't affect the overall recording. I then add the two alto tracks and the tenor track, all dry, as previously suggested. I use only the cardioid mic for this, the bottom one in the pic, but if I'm recording myself to a backing track, then I record my solo track mid/side which lifts the solo recording quite nicely.
As for processing, well I find that a little compression is always helpful in adding depth to the end result, and I use the excellent Audiocation Compression plug in because it has a great range of presets. Reverb is a different matter altogether. I find it a very difficult fx to get right, but I use the Ambience Reverb plug in which again has a great range of presets, and sometimes manage to add just the slightest touch of reverb to good effect but more often than not I can't get reverb to bring anything to the end result.
Hope this is uselful..............