I'm a new knitter -- started about a year ago. I have watched all the Bill Souza videos on YouTube to learn the basics and now would like to learn how to convert more complicated stitches into left handed versions. Does anyone have any suggestions? thanks.
I don't really have any personal advice as although I am left-handed I have never had any problem knitting the 'standard' way. You say that you want to convert basic stitches into more complicated ones but really you are almost there - the 'more complicated' ones are just combinations of basic techniques and there's not much more to learn. Cabling would be the same either way, all knit and purl stitches you already know, and increases and decreases will be obvious as you go along.
I did find this site though http://www.craftsy.com/article/left-handed-knitting which looked quite useful, and looking through the comments I agree with those who said that Continental knitting could be the answer. If you can master it I am convinced that it's a brilliant technique and people achieve good speeds and even tension. I wish I could do it but after lots of tries I'm afraid that 60+ years of knitting and arthritic fingers aren't having it. I hope you do persevere one way or the other.