Which speaker for Musical Fidelity a3.2 ?

Hi!

I'm a total Rookie...and you can save me from dropping wads of cash that I do not have in my crusade to build a sound sytem that can amaze me. I have just picked up the following,

Musical Fidelity A3.2 Integrated Amp
Musical Fidelity A3 CD Player
Transparent Music Link Super Interconnects

Now I need a speaker. And I'm completely confused! I can spend as much as $2k and would prefer to buy used cos' I want to get more for my money.

I heard a pair of Aerial 5s and I thought they lacked a warm lower end (not that I know much about the darn lower end, I just knew that it was lacking substance)

I heard B&W 603 S3s and they were a little bright and a little punchy with their low ends. I kind of liked them but I'm trying to look ahead to a time when I'll want more transparency.....perhaps as my tastes evolve.

I heard 602 S3s but they were outclassed...though they did offer a great bang for the buck. Infact I'm still tempted by them.

Any advice you can provide will be very appreciated. People have asked me to go hear the following,

Triangle Celius
Audio Physic Spark
Magnepan Planar (1.6QR??)
and Thiel 1.6s

Please Advise.

Thanks,
Udai