Akhan..., I think the advice above is spot on. As I have mentioned many times on the Forum, mostly all my gear is either a dealer demo, a factory rehab or used. ALL, the used stuff was bought off A'gon. And, I followed the due diligence advice steps mentioned above. Most important -- KNOW YOUR SELLER. Look at feedback, make a call and have a chat, and so forth and so on.
One topic that wasn't discussed very much is model. I refrain from making equipment recommendtions because such choices are inherently very subjective. However, I do recommend that if you buy a pair of speakers without first auditioning them, stay with tried and true models that are well recognized. That way if you are not happy with the speakers, you should be able to get most of your money back.
One last point, I have mentioned many times that system synergy is very important: (i) between various pieces equipment and (ii) between the amp and speakers (e.g., tube or solid state). Some speakers are easier to drive than others for various technical reasons. I suggest that you call the manufacturers of both the speakers and amps that you are focusing on to ensure there is a good match.
The better manufacturers have very helpful customer service reps who are more than happy to give advice.
Good luck and please let us know how you make out.
Cheers
