Lan & Bandwidth question

[The Savage]

This tech shit is out of my league so bear with me....

I have a wireless LAN setup (My PC + Laptop) and want to limit the internet bandwidth going to the second computer (laptop) at certain times, like when i'm playing online or downloading torrents. ATM if i'm playing on my PC and someone else is surfing on the laptop my ping goes to 999 and the game goes to shit. Is there a program i can run (or setting i don't know about) that will let me set it so the laptop only recieves say 15% of the bandwidth, and then change it back once i finish?

[Dfg]

Try this:
http://bandwidthcontroller.com/

But still you will need to learn some basic stuff before jumping in.

[hazmat]

The first thing I would check for is a Quality of Service (QoS) feature on your router. You can give your gaming computer's IP higher priority than the others with QoS. Its a good idea to use a static IP or a DHCP reservation for QoS IP's. If QoS isnt present, you should be able to drop down the wireless radio speeds in the driver settings on the second machine (example). However, if your net connection isnt that fast enough even the 1mbit setting might be enough to choke the connection.

If possible you should get the gaming compy wired to the router so it doesnt have to share wireless. With wireless, each device has to wait until theres no other device transmitting in the channel before sending its own data, so the more devices = more shared lag.