Eric:
Posting a comparison would be awesome.
I didn't do any comparisons. LogMeIn hooked me with the free Pro trial, and I was ready to shell out the money for the full version by the time the trial was up.
There is a little lag with LogMeIn, but only a little, and it is certainly fast enough for me to answer inter-office mail, process lab results, do backups, and review notes.
Also, with the full version, you can cut and paste files from work to home and back, effortlessly, even really big files.
