MM (moving magnet) cartridges are the standard and work witn any receiver with a magnetic phono input. MC (moving coil) cartridges are not so common, and require a standalone phono preamp designed for them and need to be plugged into your receiver's auxillary (line level) input. I cannot find a price on step-up transformers for these. which is never a good sigh.
If I recall correctly, MC tend to be more expensive and, unlike MM cartridges, do not have user replaceable styli and need to be sent back to the manufacturer when you need a new one.
Since you are going to be auditioning, you might ask your dealer for the differences but, be aware, you're gonna pay more for a MC overall (your dealer will love you) and, IMNSHO, the difference in sound is minimal compared to the exponential increase in complexity and cost and, in my opinion, isn't worth the price difference, particularly for a starter system.
Others may disagree but that's the beauty of the internet. You get to choose the truths you wish to believe.