Well, I've had both the LinkSys wireless routers and NetGear wireless routers. I know you're talking about the card, but I'll tell you my situation with both of the routers.
The bottom line, the NetGear router was cheaper but it's not nearly as good at routing information properly across my INTRAnet, in fact - it can't handle INTRA-SERVER communications, which sucks. The LinkSys did everything just fine.
The fact that LinkSys was better on the router end than my NetGear, and the fact that LinkSys is now a subsidary of Cisco, would make me say keep the LinkSys.