I have 10 computers. What do i need to network w cable modem

Please someone recommend our business something that actually works.
We have a small business and need best performance, speed, ect.

I have a cable modem from Comcast and we pay there highest speed available in our area. We still get dial up speeds.

Right now we have 2 devices that seem to fight each other. One Netgear Rangemax for wireless witch is pluged into another USrobotics 1000mbps 8 port switch. I asume this setup is just slowing things down. But i dont know.

I have around 10 cat5e cables running to various rooms in the house. What kind of rougter do i need to hook up all 10 connections and also have a good wireless connection. Being able to transfer files from computer to computer at 1000mbps is important. Of course it never works...

The only issue that I see in your setup is that the wireless will operate at far slower speeds the your 1000mbps switch. Thats your limiting factor. If you only see the slow dial-up like speeds on wireless equipment then the problem might be and interference issue on the wireless. If you see the slow speeds on all equipment (even computers connected to your gig switch) then the issue is most likely something hogging all your bandwidth or Comcast isn't giving you what you are paying for.

Check out www.speakeasy.net/speedtest and perform speed tests using a server thats close to your location. Perform the test during production hours and then also perform the test during non-business hours and see what numbers you get.