which provides the best signal, and signal strength in a normal house. im using the network adapter at the moment but sometimes doesnt connect or loses signal.

im using the belkin wireless g MIMO network adapter and was wondering if Belkin 802.11g Wireless PCI Adapter - F5D7000UK would be a better option to install?

There are some "tentative" wireless signal test results for several network routers/ap's and nics at http://www.smallnetbuilder.com/index.php?option=com_content&task=view&id=30242&Itemid=99999999 there are also some related articles listed below the main article that might shed some light on what you are looking for