Comparison of HD, LE and M-Powered?

[darrena]

Hello:

I'm an M-Audio ProFire 2626 owner with a small home studio looking at trading up to PT M-Powered from Acid Pro 7.

But I've had trouble finding a comparison chart of HD, LE, and M-Powered on the Digi website. Does such a chart exist? Specifically what I'm looking to compare are features and included instruments and effects plugs.

It would also be great to know what items that aren't included in M-Powered I am able to add back by buying separately. For example, I did notice that LE users can upgrade to a DV package that M-Powered customers can't.

Finally, I heard that there may be an issue with plugin delay compensation in M-Powered and maybe also LE. Is this really an issue? My style of music uses a lot of "vintage style" compression, etc. which I believe probably required PDC. I have also been known to use mastering dynamics plugs on all of my busses to tighten up the submixes. I'd love users' opinions and experiences here.

Finally, I just orderd Omnisphere. I assume that this synth works great with Pro Tools M-Powered?