Either Mt Gox or someone in the bitcoin community could apply to become an official liberty reserve exchanger and then offer special deals such as free transfers into mt gox for the purpose of bitcoin buying. Why support some third party exchanger who doesnt support bitcoins and charges outrageous fees in the process?. Then mt gox could remove the fees on trading bitcoins and instead move them to the process of buying liberty reserve.
Liberty Reserve uses ecardone - http://banking.ecardone.com/#
to manage this process .
I have even seen some liberty reserve exchangers offering visa debit cards you can fill up with your existing balance. So why not setup a system where you can charge a debit visa card with mt gox dollars?