Bootloader for ATMega1280, 1281 or 2560 at 8 MHz?

Hi all!

I would like to build an Arduino based board at 3,3 V and 8 MHz. Has anybody tried a bootloader under these conditions?

What do you recommend me?

I’ve seen the Arduino Mini Pro mini-PCBs at 3,3 V and 8 MHz, but I haven’t found the same thing for the bigger ATMega chips.

Thanks in advance!