Non-Windows desktops

Is anyone else using RHEV v3 for non-windows desktops? I am attempting to PoC RHEV to replace 100+ physical RHEL5 workstations. However, there seem to be some issues that I see that are not show-stoppers, per se, but are a major inconvenience. Of course, there may be simple solutions to this that I am unaware of. 

1. VM windows cannot be dynamically re-sized
2. Cut and Paste to/from VMs does not seem to work
3. No Spice client for Mac?  
4. Multi-monitor support doesn't work
5. No shared/mirrored console

Does anyone else have issues with using RHEV for Linux desktop replacement?

Thanks,

Kenny