Intergrated amp for Totem Sttaf

Wow...4 replies with 4 different amps! I am sure they are all wonderful amps but I can not buy all 4. I will study them to see which one will fit to my style. After I listened to tube at some audio store, I fell in love with the sound right away. Are they easy to maintenance? What is the minimum watt can drive my speakers? Thinking about Jolida?

"What about upgrading your source?" - I am using Naim CD5i and like it a lot. It's better to my ears than the Rega Apollo.
Can tube amp sit inside the cabinet? I need to hide it from my little boy.

Thanks a lot to all of nice folks here :) My budget is around $1000 for a used one. The Sim I-5 is nice but over my budget. I am thinking about the Naim Nait 5i to match with my CDP, but I heard that I have to leave the power on all the time, and I have to buy their speaker cables at least 2.5 meter long to run with the amp make me think twice about it. The tube amps are nice too, but, I see alot of folks here recommended a lot of tube amps that make me confuse.