I am experimenting with pricing on the SlideMagic template store, and trying to understand what sort of slide templates are most useful for you. So you can participate in another experiment: tomorrow you can download any template you want from the store by using discount code "Magic" (link). It is valid for 24 hours on November 17 Tel Aviv time (Black Friday came early).
UPDATE: this offer is now expired
SlideMagic: a platform for magical presentations. Free student plan available.