Congrats on the set up and welcome to the boards.
I have a 210 also and just finally went to a new lighting system also.
My origional was a DIY with 2 - 250 watt MH and 2 - 160 VHO. The light was great but the heat in the canopy was a constant stain on the pocket as bulbs went out ofter, as well as ballasts. With tanks like these a suspended light has been a Godsend. It only hurts the pocket once instead of every few months.
Please keep up the posts as when you plumb it I will be greatly interested.
I have learned alot from this site on what others have done. Currently I was just able to update my local lfs and put 6 20g longs on on sump system and 2 55's on another. Thet had been running all tanks with UG filters for quite some time and it was taking constant water changes.
Good luck and keep up the enthusiasm!
Dennis