Amazon is the best place to find deals on wireless network cards as you can compare the prices of multiple retailers all in one place. Other sites are available but you would need to scout around to find the best price whereas amazon has all the prices in one place.
A cheap wireless network adapter can be bought at every computer or department store like Best Buy, Wal-Mart. There are many online stores that also offer a variety of network cards like Amazon, Ebay or NewEgg.
The best place to purchase a cheap wireless router would be BestBuy or BestBuy.com. They have large selection of high quality routers to meet your budget.
I suggest http://www.newegg.com/. It is a great computer site to buy stuff. I bought my wireless router from them for cheap!
If you have a wireless TV then you do not need any cables except the one that plugs into the wall for power and the cable box. By wireless it means that you need to have access to wireless internet to use certain features. You can buy a router to set up your wireless network from Wal-Mart for a cheap price.
You can purchase some good and cheap car speakers from Halfpriceaudio.com. You can also purchase good quality and cheap speakers from Kmart and caraudiodiscountplus.com.
If you are more comfortable in the use of a Verizon wireless phones then you don't need to purchase other brands of wireless phones. Verizon wireless phones are more user friendly and they come cheap.
There are a lot of great places where a person can purchase a wireless speaker system. A great place to purchase a wireless speaker system would be Target, Amazon, and many other popular retailers.
There are a number of places where one can purchase cheap or discounted network analyzers in a number of places, particularly online. They can be found on websites such as eBay and Test Equipment Depot.
You can purchase wireless TV headphones from online stores such as Amazon, Best Buy and Target. However, there are also hearing aid companies which sell wireless TV headphones. They are not cheap, but usually they are worth their money and better for the ears compared to cheap ones.
You can buy a wireless keyboard at any of your local consumer electronics stores, and general electronics store including BestBuy and Costco. You can also purchase a wireless keyboard online.
One can purchase a cheap Pearl Masters MCS drumset on Amazon, or drum stores like The Percussionist. These drumsets are fairly cheap, and are shipped in good quality.
One can purchase a cheap PS2 network adapter at a local toyshop. Online it is possible to buy them from Gamestop, Dx, Lukiegames, Cheapassgamer and of course Amazon.
There are numerous places one could purchase a cheap network storage solution. Some of the more popular, reliable and trusted websites are Amazon and Newegg.