I'm getting started on my IFR training and the only thing I currently have is a MK12D+ Nav/Com with VOR (no glide slope). The expensive option would be to upgrade to an SL-30 and HSI. I keep going back to the VAL INS 429 which has full ILS and markers, and a VOR with everything included in the unit (even the radios) for $1900. It appears to be very intuitive and easy to operate. Does anyone have any knowledge or experience concerning these units? I'd like to try it, but appreciate any advice concerning the equipment that those with more knowledge than me would care to share! I can then have a second VOR with my currently installed Nav/Com.