Thx for the compliments Alex...
The only problem I see with the 2x55's Alex is that with the 18" width of these tanks you will have some dead spots in your tank somewhere with lighting... when you mount your lights be sure to have a plan on exactly where you are going to plant.
If you are planning to just plant only half the base size at the rear of the tank and leave the front unplanted then be sure to concentrate your lighting to the rear.
Same theory applies if say your "plan" is to have plants on the left or right side predominantly, then concentrate your lighting there .
55watt pc's for that depth have also done well with the Vallisneria's that I have as well as the Bacopa moneri which I like almost as much as my Angels do! :evil: Them jerks are tearing up my monerri left and right. :lol:
I have Anubias nana that are growing very nice and putting out new leaves and the java moss...well luckily it grows faster then my angels can tear that up as well.
I had a Red Rubin Sword in there but that is now gone , it was stretching for the light and I wasn't impressed with growth.
If I were you I would consider 1 more 55W over the tank, that way there you will have no dead spots and you can do more with the plantings and aquascape.
Or try it out with 2 x55watters and leave room for the addition of another if you see fit or if plans change.