Alex - all I can say is - good move
I know you will be much happier with your websites responses (my speed since I moved to colo seems to be 10 times faster load times than I had before) and I love Tux
Unfortunately (and this came from the owner of another very large hosting company) there are very few people in the world that know how to install Tux and run it correctly - and at the top of the list of expertise is Chris (Sparky/CD34)
I also found that quite a few old Search Engine bugs I was having with my former hosting company went away with the proper setup of the servers