Become an Interior Designer?

Looks like being an Interior Designer cost more than just tuition fees for me at this point! So how much do I need for the start? With Rhodec, the cheapest route for my diploma (CD version) costs USD$3,295 and I reckon I need to invest on magazines, books and such, so add another USD$1,705 for a start? OK, so I have to start saving USD$5,000 - wonder how I can kick start this!!? Have to put on my thinking cap... defintiely cannot buy my Nikon Coolpix S1, oh well!