[quote author=Caliber Mengsk link=topic=52660.msg383610#msg383610 date=1298762924]
Jeon seems to want to try making a board. Do it right and it'll be worth it. It's great to have a tool tailored to your own needs.
If you want cheap PCBs made, Itead Studio can get you 10 pieces for $28 + shipping, that's way cheaper than anything in North America or BatchPCB.
I don't see any caps for the crystal, or is that an oscilator?
Judging from his website, he prefers resonators
I think resonators are usually used with a 1 Mohm resistor
Actually, if you make it 5cmx5cm or smaller, you can get it for $12 for 10... according to their website. Have you used them before? Are they actually trustworthy? I've never heard of them, but it is a good deal. The cheapest us provider I've found was sparkfun's side company, which is $10 setup + $2.50 per inch, plus shipping, for 1 prototype. The site you mentioned is $16 including shipping (to middle US) for 10. Definetly a deal if you don't mind waiting the time. (DHL was around $25 for shipping, but they have a basic ground shipping for $4.00, so it's worth the wait for me.) Just wondering about them.
I used both the 5cm by 5cm and 10cm by 10cm services, I also own a MiniLogic from them, works like a charm! Itead Studio definitely has characteristic products that you won't find else where and his store definitely deserves more attention. There's unique products and cheap graphic LCDs.
SparkFun (aka BatchPCB) is actually slower, because they actually have to fill up a panel with multiple people's designs before sending it to the manufacture in China, where it takes a week to get made. And then it has to ship from China to SparkFun, and then SparkFun to you. The services offered by Seeed Studio and Itead Studio sends your designs right away and the manufacturer is obviously closer to them since they are already in China.
However I do have some criticisms about some of his products (some of which is just personal preference). I don't want to rant too much here about an unrelated topic though.
I do not think it's worth the effort to try squeezing a design into 5cm by 5cm, at least not this type of design. Also Jeon already has an enclosure that he's designing it for.
If you want small, the ATmega328P does not require any external hardware to run at all, just use the internal 8 MHz oscillator. You can literally glue on a button/coin battery to it and have it run code. This is why I think it's pointless to get it that small.