Ardunio...without an Arduino board

I'm still new to Arduino and electronics so if this doesn't make sense, excuse me.

I like just about everything Arduino has to offer, however, if I want to make a permanent solution, I don't want to have to use a Uno or a Pro to do it. I want to just be able to have an Atmel MCU on a board I designed.

What's the best way to do this? Right now I'm trying to do a digital voltmeter for a bench supply I'm making. I can make it on a standard Arduino, but when I want to finalize that, can I just extract the programed chip and put it in the circuit and hook up all of the pins accordingly? I don't need to be on an Arduino board in order to run Arduino sketches do I?

Thanks.

Yes, you can unplug the chip and plug it into a board of your own design. You'll need the 16MHz crystal, two 22pf capacitors and the 10k Ohm pull-up resistor on RESET. Don't forget some 0.1uF decoupling capacitors. If you want to reprogram the chip, either unplug it and put it back in the Arduino, or connect up TxD, RxD and RESET to an FTDI cable or a chip-less Arduino board (connect Ground, too, of course).

Thank you very much everyone. Now to make board designs. This will take a while... :D

This is quite possibly exactly what you need. I've been following this thread because its going in a good direction and I've wanted a cheaper more permanent solution for a while now. Everything there is in the 10 dollar range which is awesome compared to the 20 to 30 dollar range of a standard uno or duemilanove.

http://arduino.cc/forum/index.php/topic,69622.0.html

You should notice that there are eagle files and schematics already there, it could save you a bunch of time

You should also look at the $2 bare boards that nkcelectronics has, $2 in parts from dipmicro and & processor and you're off to the races ... http://www.nkcelectronics.com/arduino-runtime-board-rev-b.html

Oh, you have a design in mind already. Ok, never mind then ...