Asic/FPGA's? Or just GPU/CPU? Which currencies? I was one of those that mined a few blocks of bc and spent it all before it was worth anything, and then thought

Asic/FPGA's? Or just GPU/CPU? Which currencies? I was one of those that mined a few blocks of bc and spent it all before it was worth anything, and then thought that fpga's and asics took it out of my price range. Have considered trying my hand at it again.