The Waves SSL E & G are $29 right now but will end in 24 hours or less. I would definitely grab it. I use both of these in every session and they are my fav's. I also have the BX console E which I havent used much but its pretty dam amazing. The most recent versions of Studio One has Console shaper built-in. The whole audio engine in S1 has been programmed to sound like a console all the way to the summing which is supposed to act like a SSL board so you might have some SSL mojo in S1 already.

Grab the waves here if you're interested --> Analog Modeled Plugins | Waves