I've just done my final year project, I created some online sofware using ASPX/SQL.
I've a fried on y course hose been programming microcontrollers using embedded C.
Another guy programming microcontrollers using op-codes.
Another guy has written a DOS based Wav - midi converter using C - and shit loads of complex maths.
it's not really what you write th FYP in, It's the suject and indepth study.
I've been told by my supervisor that it's mostly the write up that will count, if you choose a simple project you'l get more marks when you've had the time to do kick ass write up, than you would if you'd chosen an overly complicated project and not had time to make a decent write up.