:(
Even though Noise Marines are I5, not 4, they aren't really much better in
CC than standerd
CSM for 5 points more.... What they do, is all take Sonic Blasters and shoot (Rhino is up too you then)
I think you've spent 790 points on your Noise Marines.... so what i would do is this: (fluffy, and much more competitive
IMHO)
Another Deamon Prince,
Then give them all sonic blasters, you then can either have 21 Noise Marines and 3 rhinos or no Rhinos and another 4 Noise Marines
I'm not sure whats best/other people think about the Heavy, i personally prefer Defliers (Not because there better or anything, i just like them more

), its probably best going with 3 of the same thing, although how you have it may be fine