The Zonealarm system will provide extra security at a price, but unless you have very naive users (young kids?) who click on any link they see, it won’t provide much more protection than a good router and anti-virus software.
It’s more substantial negative is the proprietary Super-G Wifi system. Unless you have Super-G cards (atheros chipset, primarily in Netgear and D-Link cards) the router will run at standard 54mbps speeds.
I would recommend getting a Wifi-N router. Any new laptop will include a Wireless-N card, so it makes sense to get an N router even though the speed boost isn’t quite all the way to 300mpbs. N also features greater range, so you will see an improvement even with a standard G card.
I have the Belkin N1 router and have been very happy with it. You really want to avoid the Pre-N routers now that the final draft standard has been approved. You want to look for a router that supports the “Draft 2.0” specification, which is the final spec.
My brother to me to check out an SMC 7004AWBR Barricade Wireless Broadband Router because of the connections.
Also, What do you think of the D-Link DI-724GU Gigabit Office Router?
My printers are old and have parallel serial ports.