[G4] Pls. Suggest Upgrade

[Nijap12]

> ,
> Help
>  I have a G4 Mirrored Drive 1GHZ dual.
> need to you it for VIDEO EDITING with my FCP studio HD
> what is my max upgrade for the item stated below
> and pls. do recommend and guide me specifically : Brand & model if any
> to get it running faster than it is.
>
> Processor Upgrade?
>
> RAM:  max 512MB X 4pcs. right?. Brand and model?
>
> Hard Disk?  Now i am having 2 X 250Gig Maxtor on my front bus
> and the original 80Gig on my back bus. Max ATA and sata?
> Does raid help much and is it secure coz i heard that it crashes  
> easily.
> Will external Firewire H/Disk assist in this matter? pls Explain  
> the backup method.
>
> BTW, i have 2 17 inch Apple LCD Studio Display
> one running by ADC and the other one on ADC to DVI adapter.
> Should i upgrade my Display card, what model suite my requirements?
>
> Any other upgrade issues pls. advice.
> Thank You
>