I think that it would help if you explained a bit better what it is that you are seeking to achieve.
I'm assuming that you want to use wireless technology - but you could be wanting to connect everything together with ethernet, so what follows could be off beam.
You already have a Linksys wireless router capable of supporting the number of computers that you mention. Is it the case that some will be out of wireless range? If so, are your thoughts of having a wireless link between the Linksys router and the Netgear one, and having the "out of range" computers within range of, and "connected to" the Netgear router?
If so, I am not sure that you can utilise the two routers in that manner. What might suit your purposes better is a repeater such as those here:
http://www.broadbandbuyer.co.uk/Shop...upID=8&Alt=Yes
There is also technology that allows you to use the house mains wiring to carry your data traffic.
Good luck.