Justin,
If you want a computer that will meet your needs currently and then can be used with ccr and it's own PP02 monitor but not Helium mix's then the VR2 might be an option it is cheaper than the Vr3 but will do the same job except it will not do Helium.
The Vr2 is available with a colour screen or standard and just about all the feature of the Vr3, check
www.vr3.co.uk for more info.
Cheers
Barrie