Wifi or Wired for World of Warcraft?

[gidgiddonihah]

I was wondering if aWiFi or Wired connection would be better for WoW. If i was to choose the Wifi, my whole family could use it and its cheaper, but if its not as reliable then i would just suck it up and buy the more expensive modem. Im just worried with lagging and the such with WiFi and WoW (Im building a mid to medium high gaming rig and i want to get the most out of my graphics). Will i see any decrease of performance if I choose a faster router such as the one below (125 isnt all that fast, but my modem maxes at 100)?

I have this router for Wifi:

http://www.newegg.com/Product/Product.aspx?Item=N82E16833320026

But i need a PCI card, or USB if cheaper with the same reliablity. I was looking at these:

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=40000031%201132839888&Description=usb%20wireless%20adapter&bop=And&ActiveSearchResult=False&Order=PRICE


Or should i just suck it up and get a wired connection-I have ATT 'High Speed' so i'd need somthing that would be compatible... And if I get a new modem, is my plan maxed out at the 100mbps if my modem does? Im really not good with the internet side of computers .

Thanks Ahead!

 

[gidgiddonihah]

Will the USB adapter slow the connection down at all or would it be benificial to get the usb? I like the portiblity compared to the PCI, but are the PCI more reliable or faster?

 

[gidgiddonihah]

Another problem is my modem- the Speedstream 4100 overloads when i play WoW at 100mbps Full or Half Duplex so I had to turn it down to 10mbps Full.
~Does this have any noticable effect on wireless or gaming at all?
~Since im at 10mbps should i just go for the 54mpbs router?
~Is there any way to fix this problem (Besides turning the speed down)... It seems to be a common problem, but there is NO fix (Besides turning the speed down)... It has been driving me nuts!