Sounds like you've already done quite a bit of reading, so that's good (Coffee Geek is the forum I had in mind).
Perhaps I also should have said you can get almost as nice of a machine for a bit less money. From what I have learned (reading, not owning), something like a Gaggia will give you similar performance to the silvia for less money. Part of this is b/c the silvia is built like a tank and housed in brushed stainless.
If prices haven't changed lately, a new silvia and PID will set you back something like $850, which is too much for that machine, I feel. If you can find a great deal on one (as I did), then by all means, it's a great machine with a waning cult-like following (meaning tons of info about modding or fixing it). The PID is not necessary, but it makes consistency a lot easier. You can read about temperature surfing, otherwise.
Once you're near $1000, you start to get into the range of affording an HX (Heat Exchanger) machine. The Salvatore One Black comes to mind as being around $1000...I think they increased the price to $1100, though a while back. An HX will allow you to pull a shot and steam without the wait time associated with a single boiler machine. So will a Double Boiler machine, but those get even more expensive. Again, buying used can save you a bunch of money; you've just got to be sure it has been well-maintained.
I think you're best off doing a lot of reading about the various choices / experiences over at CG or elsewhere and see what you feel matches your needs / budget. From the sounds of things, you likely have already been doing this. Have fun!