@scotthiga If you really want to experience what tubes are all about suggest you do a simple SET integrated with a full range driver.
Check out Analogue Ethos. You can do a kit or prebuilt. Beautiful cosmetics and I suspect great sounding as well. Other great options would be Erhard Audio, Elekit, AN kits, among others. Pair that up with an Omega speaker (or similar efficient easy to drive design).
Certainly you could go with a push-pull tube design if you want something to drive your current speakers. Just keep in mind not all speakers play well with tube amps. Synergy is key. Otherwise, you could end up with something inferior to your current amp. (BTW, it would be helpful if you post more info on your system. Otherwise, you will get many random opinions--including mine.)