Have you had any problems getting your photos, videos, and songs on the SD card?
Really, this shouldn't be a problem. I prefer getting 32-gig cards -- might as well get more than 16, and going to 64 is a bit of an ordeal, as far as I understand.
Just turn the tablet off, then insert the microSD card. Then, turn the tablet on, and go into the settings and check the Storage setting to see that it "sees" the microSD card properly.
If it does, just hook up the USB cable between the tablet and the computer -- this would be the Samsung cable with its big tablet-side connector. You should see the usual little taskbar notifications that drivers are being loaded, and once that's done, you should be ready to go. Launch Windows Explorer, which should show the "Tablet" and the tablet's "Card." Then, just drag and drop from your computer to the SD card, as you normally would. Presumably you'll want to make new folders on the card like "Music" and "Pictures" and "Videos," and so on -- and then just drag your media files into those folders. Piece of cake.
It is actually possible to move SOME apps to the SD card, but that's generally done after you install them, and you do it on the tablet itself. But, with the 8gb Galaxy Tab 2 7.0, I would just leave them on the tablet's memory, and keep your media files on the SD card. That should be plenty of room for everything.
Bottom line, though, this should all work very well.