How much light is too much?

[parkinsn]

I am looking at building a new canopy for my tank. I have 2 x 250w MH 10K and 2 x 96w PC attinics now. My plan is to remove the PC's and replace them with 2-4 54w attinic T5's and add an additional 4-6 T5's (fiji purples, some 20K's will have to take a look at lamps) as well as keeping the 250w MH's. Essentially making it a 8 lamp teck light with MH's, is this too much light? I am looking for more even lighting through out my tank. Im also open to opinions on lamps and layouts for the best color. Oh and my tank is 48"L x 24"W x 24"H, SPS dominated.

This brings me to my next question.... Does anybody know where you can get inexpensive T5 and MH reflectors made, LFS, or other options? I have been to a few metal fab shops, got some quotes for mirrored stainless steel and it seems really expensive, as in buy a new fixture lol.

Thanks for any help.

Scott