xDownloader
If you are familiar at all with the Wii Homebrew Browser, this application will connect to the xDownloader server to directly download homebrew and install it straight onto the memory stick. No muss, no fuss.
The only problem is that the xDownloader app is in french. Well, lucky for you I've translated the menu options into English!
xDownloader: http://www.mediafire.com/?ixgnj4z33kl or Straight from the xDownloader site.
English patch: http://www.mediafire.com/download.php?ttnz2omgycz
Download and extract both files to the root of your memory stick. Make sure to overwrite when extracting the patch file.
About 2 noob posts away from going ape sh*t