T65/C60/B15, an awesome combination...Yes, buy the T65's, and store if you want, but get real...Your skin will start to itch, your face will turn red, your hands will start to tremble, you will be pacing back and forth in your apartment, and you know why??? Because, even though the B15's sound good in your current environment, you know you want to hear those T65's with music, and want to "test" the whole 5.1 setup with a movie. I'll bet anything that you will not resist temptation, and those T65's will not be in storage for long, maybe not even be stored at all...
As for your sub, haven't heard the ones you mentioned. Myself, just pulled the trigger for an HSU VTF2-MKIII.