/diy/ - Do It Yourself

So I'm designing an Arduino shield that drives four motors with encoders and I'm using an ATtiny2313 to read the encoders, so I need it to be fast so it doesn't miss any encoder changes.

I found this 16MHz ceramic resonator with built-in capacitors so it saves me PCB space. I've read that crystals are more accurate but I can't find anything that has the capacitors in the same package.
If I'm using UART at high baud rate to communicate with the Arduino, is stability going to be an issue? I noticed on the Arduino schematic that it also uses a ceramic resonator (the crystal is for the USB controller).

I should add that I don't really want to bother with surface mounting, so any alternative would have to have pins.