Here's a new mashup from Chris Evans-Roberts of Ithaca Audio, "Rolling In The Beats", featuring 24 songs and made with Ableton Live and an Akai APC40. The clips in the video should help in identifying all the samples, but you can also find the full list (and a free download of the track) here.
Chris also produced a similar previous mashup, the funky "Don't Hold Back, Just Push Things Forward" - we still love the Shaft/Imperial March mix in that one.