I bought a 2.4 GHz Linksys Wireless-G Range Expander for $100 from Best Buy for our wireless router. Any ideas if this thing really works well? Is there a way I can test our current wireless connection on our laptop before I install it then test again after I install it to see how much better our connection performs? Our current router is in the basement and we get a slow connection on the main level and even slower upstairs. Would buying a better wireless router & USB plug & play repeater have been a better idea? Thanks & Merry X-mas!