Congrats!
Aaron at Amiga On the Lake is terrific to work with and I got my board, sound card and video card from them in December. I went a bit crazy with the case and went with the Corsair Crystal White 570X -- but then again the Amiga deserves a bit of class! Anyway building the X5000 system was very fun and it has worked flawlessly.
I had an A1000 and A2000 when they were new, but (sadly, now in hindsight) sold them to a friend and moved on.
Since then I have come back and have obtained a 500 and 1200. They are fun too, but there is something reassuring about the X5000 and it just seems to fly.
Enjoy!