Do I need my PC for scoring or not?

[Andy Scuci]

Hello
I just bought a Mac Pro dual core Intel 3.00 and Rme Fireface 800 running logic 7. I also owns a PC quad 4200 AMD with Gigastudio that I was thinking of slaving up thru Adat to the new MAC. I'm planning to do orchestral scores.
A few people has been telling me to get rid of the PC that I'm not really gonna need it since this new Mac is gonna have enough power run a full blow orchestra internally (with the EXS and Kontact samplers East West Platinum etc.) But I know a few big time composers like Hans Zijmmer uses several dedicated giga machines. I like the thought of selling the PC because I like having the samples internally in logic versus having to deal with the extra latency dealing with triggering the giga machine and coming back into logic. Also I could buy some other gear for the money. But if I'm losing alot of virtual players (who lives in giga) it' not gonna be worth it.
Any thought or advice on this matter would be greatly appreciated..
Thanks in advance
Andy