Regarding the podcast broken Wii talk...
If you value any of the unnecessarily "locked" saved data on your Wii (the data that can't be saved to SD card) I would send it in for repair ASAP. Your system is exhibiting similar symptoms as my last Wii had - namely the freeze on the boot-up screen.
My three year old Wii crashed a couple of months ago. At bootup, the system would hang up on the Health and Safety screen and the press A to continue prompt would not appear. I was never able to get into the Wii menu after hours of troubleshooting.
I drove it up to Nintendo (30 minutes drive from me) and the tech said that the graphics chip had failed and they were unable to access the system to recover any of my data. All of my data was lost (game saves, Mii's, message board posts, photo channel images, address book friends, Nintendo channel game stats history, etc).
They ended up providing me with a new Wii (white), a one year warranty and no charge on the repair.
So, send that Wii in asap. Copy your Mii's onto one or more of your remotes, copy as many game saves as you can that are allowed to be copied onto sd card (Unfortunately, Nintendo provides no way to backup your game saves for online enabled games). Since you can still access the Wii menu, Nintendo should be able to copy over all your data onto a new Wii, so you shouldn't have anything to worry about as far as complete data loss.