Too many things for 1 PC????

I just ADD a third 80gb Hdd to my PC (someone paid me a small job with it
)I need it, I need it to instal win98 in another drive to make works in C++ that doesn't work having winxpsp2,MY QUESTION IS ,..are there too many things in my PC? besides 3 diferent Hdds,there are 3 CD& DVDs Burners ,AND BESIDES a video PCI Capture, the SCSI PCI card,a Sound Blaster PCI card, and an AGP card??Could this bring somekind of a problems?is there a limit to a system?
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I apresiate your replys ,ESPECIALY from the SPECILIST here .....Hi Congo..

wach this
I apresiate your replys ,ESPECIALY from the SPECILIST here .....Hi Congo..
