I just purchased the Receptor by Muse Research. I did this after much lurking about on various forums, and much thought. Read lots of "pro's" and "con's" regarding purchasing such a device. There is always the option of purchasing a second computer rather than the Receptor.
But I decided to make the purchase anyway.
And I'm glad I did!
It helps tremendously with decreasing my computer's CPU (and memory) work load. It's also a helpful solution to latency issues.
One of the FIRST things I did was utilize the GPO "cross-grade" so that it resides within the Receptor.
I tell you, it works wonderfully for me!!! (So far.) I am currently working on a longer composition using both JABB and GPO (and a little of Halion too). There are a total of 28 VST instruments that I decided to use for this piece. Before Receptor, I had problems with the "stuttering" which I can sometimes experience when using such a high number of VST instruments. With a little tweeking (and some time spent on becoming familiar the Receptor device), the darn stuttering went away!! For this one large project, when using the Receptor, I am now able to keep the MOTU 828 MKII buffer setting to 256. This is down from the 1024 (prior to using the Receptor) which I had to use to prevent the "spitting and the stuttering"!! (Normally I'm able to keep the buffer setting to 256. But not for this one particular project, unfortunately.) The Receptor buffer setting is at 128!
The Receptor is one option.
Purchasing a second computer and networking the two together most certainly is another option.
But, I just want to put in a good word for two great products that can be used together and be helpful as we compose and sequence using memory and CPU intensive sound libraries.
Dell 650 Precision Workstation with 2.8 Ghz Xenon processor; 2 GB's RAM; 3 internal SATA HD's, all 7200 rpm; Windows XP Pro; MOTU MTPAV; MOTU 828 MKII; M-Audio 88 Pro controller keyboard; Steinberg's SX 3.11; GPO; JABB; Halion 3 . . . and other sound libraries too.