Learning schematic layout - Orcard or PADS?

Hi All,

I'm a VHDL designer (of sorts) using FPGA's. Short of specifying pin
outs for FPGA's I haven't got involved in board level layout, so far...

I'm thinking of taking the plunge and buying Orcad or PADS, but as
these are both expensive packages, I'd like to know first, just how
difficult is schematic layout at the board level?

What areas of knowledge do I have to learn? Primarily I'm designing PCI
cards.

I don't want to learn PCB design, that certainly seems to be a large
area best left to experts! But I think being able to do my own layouts
will save me some money... providing it's not to difficult and doesn't
take a long time to learn.

Any advice would be great.

Thanks,

Andy