Hey bro,
Lot of people have given very good advice above.
I'll only add the following:
1. Keep patience.
2. The Denon will arrive soon. (Or might have arrived already). But please put away the urge to buy speakers immediately.
3. Go to Delhi, book appointments with retailers. Tell them you are looking at a Denon pairing. Give them your choice of speakers. Almost all dealers will be able to set up your speakers paired to a recent Denon AVR, if not the 4800 itself.
4. Please, please listen to a few bookshelf options and floorstanding options from your chosen set.
5. Only then take a call.
6. Dont rush, cos remorse can be very hard on the mind and pocket.
All the best.