cwaugh18 wrote:I'm willing to live with what most professionals would consider "crap" because I don't need anything fancy.
I'm with you - Your question could be written "how do I get a less crap recording than my current really crap recording for about 50 bucks?"

Have I got that right?
cwaugh18 wrote:So couldn't I just buy a microphone and cable and connect the mic to the amp?
You could, but it would a) require an amp with a microphone input, and b) unless you spend a
lot of money on the amp, the vocals will sound crap - not the same crap as you get with your computer microphone, but crap in a different way. Guitar amps are designed to work with guitars, and even the "acoustic" amps for guitars with microphone inputs usually sound really bad on vocals - the problem is that the type of speakers they use are designed for guitar, and the amplifier is designed for the speakers.
An example of the type of guitar amp that you can put vocals through and it doesn't sound crap is the "A.E.R. Compact 60"
http://reviews.harmony-central.com/revi ... ct+60/10/1
So after that little day-dream we're back to reality.
For the best
recording quality results, I think your best bet (without stretching the budget much) is to go for a USB microphone and record the guitar and the vocals separately. A "large diaphragm USB condenser microphone" could be used for recording vocals, acoustic guitar, or amplified guitar. (It's not going to sound like a professional studio recording, but you should be able to get recordings to sound pretty good.
If you specifically want to sing and play at the same time, then the question is how to get both sounds into the computer at the same time.
One of the considerations is the type of sound that you are after. If you want a clean, acoustic sound for both the guitar and the vocal, then using one or more microphones is the way to go. But if you want a "plugged in" sound, then you probably want to go through an amp of some sort.
If we start talking about amps, then that opens up a whole new subject (and a new budget) so we would probably be best to leave that for another discussion.
The easiest way to record both the guitar and vocals at the same time would be to record "ambiently" - that is, place the microphone so that it picks up both the sound of the guitar and the sound of your voice at the same time. This will be much easier to do if your guitar is going through an amp, because then you can have the microphone fairly close for singing and adjust the position and volume of the amp so that the guitar is also picked up. Because the guitar and vocals are recorded on the same track, you are quite limited in the amount of "production" you can do - essentially the sound all comes down to setting things up carefully.
The "task" is crying out for a mixing desk so that you can either plug in two microphones or a vocal mic and plug in your guitar (D.I.), but even the cheapest of mixing desks bumps up against the budget limit, and then you still need a microphone and a USB sound card to connect the mixing desk to your laptop.