hrmmmm. I'll assume you have 97-03 body style. I'll also assume most people don't really hear a difference between $100 speakers or $500 speakers. So why not just go close your eyes and let somebody hit the buttons on a speaker wall at best buy? Pick the one that sounds best with your eyes closed?
If I were to buy some right now, I'd check out these speakers...
Scan-speak Discovery
Mostly because I'm bored of my a/d/s/ and attempting to tune them for a stock install.
As for amps...whether it's a chinese rip off or made in Italy, they generally use the same circuits since the chinese robbed everybody with coherent thought processes...grab something that makes you feel warm and fuzzy inside? 100x2 is good enough. Show a picture of what you choose and we can help with install tips based on thermal loads.