Then when its time for an amp, Emotiva xpa3, outlaw 2200's {3 of them}, and a few others are all readily available... Let the avr power your surrounds and just get an amp for your front 3... I wouldn't go with the xpa5 unless you are going with a processor/preamp... Since you have that Marantz amp section sitting there you might as well use it, having 400w for surrounds is a giant waste... Although now the xpa5 and 3 are the gen2's so you will pay more for them, but I'm sure b-stocks will be a-plenty so you can save $100 there, just have to call them and ask if they have them... Same goes for outlaw, check the website but also call, I bought all of my 2200's from bstock and they came new never opened, 1 of them was bstock and in perfect shape...