I am new to gardening and looking to buy a trimmer/edger. I was told
that you can also buy a brush cutter blade from local homedepot and
replace the string with the blade to cut small bushes and weeds in my
backyard.
Can anyone give me advice on what kind/make to buy? Can I buy electric
trimmer/edger's like black and decker for 50$ and buy the extra blade
or do I need to buy a gas trimmer?

Thanks,