2 little questions about Amplitube and ALtiverb

Hi folks: Yesterday I was trying to install Altiverb and Amplitube on my MIX +/- System ( d24 + mix farm + DSP farm V2).

a) Maybe I am a moron but... will HTDM plugs run with a mix system at PT 5.1.1/OS 9.2?

b) My G4 800 QS has 512MB RAM. when I insert Altiverb, it says there is no enough memory!

There's been some discussion on the alt.sekd board about impulse responses and convolution. Brock Stapper (also a member here) passed on a link to ["http://www.noisevault.com"]NoiseVault[/], which has a lot of user made IR's aswell as links to other IR sites.

Have you guys evaluated the reverb plugins for TDM systems?
Seems Altiverb and Lexicon really rules. However, Lexiverd is not available for PT HD systems, right?
If anyone has already used Altiverb, is it really power hungry?

Thanks

Hi friends! I have heard that ALTIVERB seems to be the best available reverb for PT TDM systems. However, seems that it is very hungry chip power!

a) Are they available for Mix systems under OS 9.2.2?

b) if ( a) is yes, how much of dsp usage? how will we end up with track count, plugin usage?

I'm gonna try the demo tonight..on a G4 400

anybody else heard this yet?