Well you can browse all the Macs except the mini through the menus. IC website.
See iStore Online is selling the "replacement" midrange mini for R9799
http://www.istoreonline.co.za/category/15/mac-mini
It comes with 8GB RAM and same 5400 1TB drive. If you take the IC deal and you add 8GB of RAM (~R1300), the new and old models cost approximately the same.
I basically comes down to i7 vs i5 and HD4000 vs Iris (both 8GB and 1TB HDD). 2x thunderbolt might be usefull?
Personally I'll rather take the i7 HD4000 vs the i5 Iris. Some might prefer the better graphics.