SB Audigy Card and Logitech Keyboard and Mouse Incapatibility ?

I'm researching to buy new and when customizing for an 8250 there is a question why there is a compatibility issue with the SB Audigy Card along with the Logitech wireless keyboard and mouse, when Gateway's 700XL offers the same without the issue. As a past and present Dell owner, I'm wondering about the exceptional extras the 700XL is offering (Harddrives, the sound card and the keyboard and mouse I want, etc.) Someone talk me out of the Gateway by reasoning (mostly the compatibility issue) and I'll be ready to order my 8250. Thanks ahead.

                                                                    Michael Moriarty