AVR Project – LEDs and PWM

I've been super-busy at work lately, and haven't had much time for personal projects. But I have managed to spend a tiny bit of time here and there working with that AVR development board. I've got it controlling 8 super-bright LEDs (4 green, 4 red). The code I've written uses PWM (pulse width modulation) to control the intensity of the LEDs. I'm going to use this method to try some interesting projects using color-blending from red, green, and blue LEDs. I'm pretty much stuck right now though - I am waiting for an order from Mouser to get here. By the way, for you other folks using AVRs - where are you getting them from, and which AVR are you using? I'm having trouble finding anywhere that I can still get the 2313 that is on this development board. Do they make them anymore?