Okay- I have the following doubling up- should any of them not be on the same irq, and if so, what range do I have available to change them to?

(All PCI)

16- USB Universal Host Controller
16- PCI Express Root Port
16- Nvidea Geforce 6800 GS
18- USB Universal Host Controller
18- Sounblaster Live! 24-bit
19- USB Universal Host Controller
19- Serial ATA Storage Controller
23- USB Universal Host Controller
23- USB2 Enhanced Host Controller

I also have non-doubled PCI devices on IRQ 10 and 21

For ISA, I have the following doubled:

9- Microsoft ACPI-Compliant System
9- VAXSCSI Controller

And other ISA devices on IRQ 0,1,3,4,8,12,13,14 and 15