Alright, after a brief search, I found 2 wireless routers with more than 4 LAN ports. (copy/paste the below URLs, then delete all the spaces. For some reason the links become broken when I insert them in the standard method but it works when i copy/paste the URL into a new window *shrug)
Newegg.com - CISCO CISCO1811W-AG-A/K9 IEEE802.11a/b/g, 802.1Q, 802.3af, 802.1X Wireless Router - Retail
rofl.
I'm guessing $950 bucks is not exactly the price range you're considering?? Okay here's the other one:
Newegg.com - D-Link VWR-VR IEEE 802.3/3u, IEEE 802.11b/g Broadband Telephone Adapter/Wireless Router with Vonage - Retail
I have no idea what that second router is, really. It says Vonage on it... ?? I have no idea what that means exactly.
However, there are also WIRED-only routers available that have more than 4 LAN ports, like this one:
Newegg.com - LINKSYS BEFSR81 10/100Mbps EtherFast Cable/DSL Router with 8-Port Switch 1 x 10Mbps WAN Ports 8 x 10/100Mbps LAN Ports - Retail
So, unless you buy that odd Vonage router, the only way for you to go is to buy additional equipment. Here are the options I can think of.
1. You could get a standard wireless router with 4 ethernet ports and get 1 wireless adapter for one of your PC's. Then you would have 4 PC's wired to it and 1 PC and 1 laptop connected wirelessly.
2. You could get a switch along with the router (which will provide additional ports) and plug it into one of the ports on the wireless router. That way you'll have 3 comps wired to the router, the remaining 2 wired to the switch, and the laptop connect wirelessly to the router
3. You could get 2 routers and connect them together, which is almost exactly the same as option #2
And another option to consider if you're willing to change your original plan:
4. get the wired only router with 8 ports and connect everything with cables, including your laptop, and forget about wireless.