What soundcard do you have? If it's not a dedicated recording card then you'll be struggling to record anything of any kind of quality.
Soundblasters and onboard AC97 type cards will work, but they are never going to sound very good.
But if that's what you have and you are only wanting to experiment, then for $200 you can get a

Behringer UB802 mixer for $69.99
Studio Projects B1 for $99.99
and the rest on the cables you'll need.

Mark has a good suggestion. I want to mention that you will most likely need a condenser mic for what you are asking about ... these require phantom power to operate. That is why Mark is mentioning the small mixer along with the mic. You could also forgo the mixer and go with a stand alone mic pre like the Studio Projects VTB 1

I did actually consider mentioning the VTB-1. It's a nice unit.
Two reasons I didn't are....
1) It blows the $200 budget along with the B1
and
2) The mixer allows you to use both channels of the soundcard.

And thinking more about it now.... If we are talking about a sub-standard soundcard here, then the VTB-1 will be overkill quality-wise.
If he's wanting to get a little more serious, then I'd suggest looking at something like the M-Audio Audiosport Duo, which Musician's Friend has on special for $149. So if he could spring another 20 clams, he can get that and the B1.

There are actually a number of workable combinations here.

My feeling is anything will sound better through a better mic pre. The VTB1 while really nothing to write home about, will help even a cheezey card LINE input.

I try to steer people away from the Behringer brand anytime possible for a number of reasons, the main one being very poor quality control of their products. For every person who recomends Behringer I have seen 3 that say "don't buy it, I did and I regret it." ...

I'm using a delta 44 soundcard and a Mackie 808M mixer for signal boosting ( it doesn't have to have an ultra quiet THD ). The mixer has phantom power on it, I just need to have some mics recommended to me under $200 that'll sound somewhat decent for vocal and instrument.

studio project C1- $199- Rode NT1-A $199-
very good mics, especialy for the money... you get more than you pay for IMHO

And you will keek these mics in your cabinet and use them, even after you get more expensive ones...

takamine334 wrote: I'm using a delta 44 soundcard and a Mackie 808M mixer for signal boosting ( it doesn't have to have an ultra quiet THD ). The mixer has phantom power on it, I just need to have some mics recommended to me under $200 that'll sound somewhat decent for vocal and instrument.

Now that throws a different light on the situatin :D
Forgive me for assuming the worst. When someone just says "soundcard" I've found it generally means they've just got what came with the computer when they bought it.

The mics that maintiger suggested will serve you extremely well, but for $200 I would buy 2 Studio Projects B1's. (please don't confuse these with the Behringer B1)
They are probably not quite as good on your voice, but they'll be arguably better on your acoustic. The B series use a 3 micron diaphram which basically makes it more sensitive and therefore is more suited to micing acoustic instruments.
Plus it gives you the ability to stereo mic the guitar, or record your guitar and voice simaltaneously.

Then start saving another 200 clams and get a C1 then. You'll be able the record almost anything with these 3 mics.

On the Mackie.... It will serve you fine for now, but be aware that powered mixers are not built with a studio in mind, and can introduce unwanted noise into your recordings. You should look at eventually replacing this with a dedicated recording pre like the FMR RNP.

Good luck. Let us know which direction you take.

Mark

Mark (and everyone else)

Thanks very much for the informative replies. I am in the process of making several purchases, mics and a fairly decent pre-amp. Hopefully everything will go well. Thanks again for the information.