PS+ adds a Brothers: A Tale of Two Sons (PS3, puzzle solving, got very good reviews) and Worms: Battle Islands (PS Vita)
The PSN update opens preording for InFamous: Second Son (which is still two months from coming out.) The preorder gives you a prequel. Grid 2 Reloaded (PS3), Olli Olli (PSVita), and Lucifer Ring (PS1) are in the game. Sale of the week are music games.
Rechargeable batteries and/or the recharging dock is a must and is going to be my next purchase. I have had my Wii since Sept and I've already went through three changes on batteries on my four controllers already.