Help needed using a microphone and audiowith an a/v reciever

[pokethepope]

I've been roped in to organising the a/v for our office Christmas party which will involve an awards ceremony and presentation, but have zero experience with this sort of thing!

A laptop will be feeding video and audio to a projector via HDMI. The projector has an aux output for the audio. I need to take this audio feed and combine it with a microphone, and send them to the venue's Marantz CR 611 receiver which is hooked up to four speakers.

Would this Behringer mixer be all that I need?

• Mic into line 1 using XLR cable
• Audio from projector aux output into line 2/3 using a 3.5mm-to-6.35mm cable
• Output from the mixer into the receiver's 'analog in' ports using a 6.35mm-to-RCA cable

Would I need an amp in there somewhere, or would the above work and be everything that I need? Any help much appreciated!