The general consensus seems to be that sunglasses are probably the only item you really need initially. There is an old thread on which ones here:
http://www.pprune.org/forums/showthr...highlight=maui
I found it useful. I went for Maui Jims in the end - very thin stalks that don't raise the headset and therefore keep the noise out - and there's plenty of it to keep out!
Best of luck with your course - you'll have no regrets.