What is your goal? Are you looking to make a profit? If so your current approach won't work unless you want to invest in expensive ASIC equipment. If you are doing this for a hobby and just want to support the bitcoin community than yes using your GPU and some ASIC usb miners would be perfectly fine. Don't expect to make your money back.
I'm mainly doing this as a hobby.
Take a look at some altcoins using scrypt, mining bitcoin atm with that gear is not profitable.
Any suggestions? I've looked at worldcoin and digicoin so far.