I'm not familiar with tube amps or the LCD2's but like I said earlier I use an SX750 for both my BS22's and for my Q701. The BS22's won't need much power, so anything between 50-100 watts per channel should do it. That leaves a lot of options. I use mine near field and 50 watts per channel is more than enough.
Yeah, I was using them with a Lepai tripath, which is only 20 wpc. The SX750 definitely looks like an option, its widely available on ebay for 250-300, and one on craigslist near me for $150. The only thing is that every time I look up something I find on ebay or craigslist, I find an AudioKarma thread where someone says they found it at a thrift shop for ~$30, or asking if they should spend $100 on something, and everyone saying no. Is this just something I'll have to invest time into to find decent deals? I'm fine with that - summer's on its way.