I dont believe there is a "Professional Myspace Designer"... Google.. There are Html generators all over the web.. Layouts, designs... Myspace now has a beta profile builder... try Mygen.co.com also
There are people that "CAN" do professional MySpace designs, just its not as interesting, or in most of their interest to do so. Start learning HTML and CSS and you can achive that.
go to sites like pimpmymyspace.com and go to peoples myspace and it will say something like "get great designs at aerotech" it is really easy and then to put little pics use photobucket tyhe html code or what ever