Re-Considering iMac Purchase to a Mac Mini

I made a post , last month , that i want to get the 2012 iMac :

http://www.theverge.com/2012/10/23/3546454/what-do-u-think-of-the-new-imac-os-x-users

Upgrading RAM in iMac is not possible (2012 ones) and repairability is also doubtful , So i don't want to go that way.

Currently , having Dell XPS 430 hooked up to a 42 inch LG 3DTV and i just want to add Mac Mini to current setup.

But did hear about flickering issues (Intel has promised a fix) of Mac Mini.

http://www.macrumors.com/2012/11/28/intel-reports-fix-coming-for-flickering-on-monitors-connected-to-2012-mac-mini-via-hdmi/

So ,

Does it support 1080p ? (i dont want limit of 720p)

How does iTunes perform on Mac Mini ? (if i shift my iTunes library to it , totally has 7 GB Music , 12 GB 1080p Movies , and podcasts etc. overall totally 42 GB)

Wait till next year ? or go with current Mac Mini ?