Polar
RANT 2000 is very different from FS2000. Purely a radio aids tutor with only the relevant nav instruments shown. Can be set up for almost any nav fit (even EFIS!)to match your a/c, and has several very useful tutors (on anything from holds to VOR tracking). I guarantee that this will save you money on your I/R and get you up to speed procedurally. For the cost of about 15 mins I/R training it's worth a look.