Welcome Kevin 
 
15 huh ,,great early start 
 
 
 
My honest opinion ,GO with a 125g tank for a few years till you get some experiance in the hobby ..Going with a 350 gal tank youll need the following 
 
400w MH at least 3 of them total should cost around $1000 
 
a few power heads ,Tunze 6100s or 
Vortechs each cost $300 or better
 
Chiller ,at least 1/2 HP ,good one cost $900 pr better 
 
Live rock ,at $3 LBS for the cheapest around ,about 300+ youll need 
 
Sand ,,not ness ,all depends it you want sand in your tank ,if so ,some what cost $200 
 
Skimmer ,--$700+ 
 
Tank and stand ,up to you 
 
sump ,,,could get away with a use tank and make baffles 
 
Controllers and calcium reactor ,Ide say in the $1500 mark 
 
this does not include all the little things that add up to big things ,nets ,tests kits ,ph monitor, Buckets and salt ,pumps ,magnets im sure there are other things that i forgot ,and we didnt even get to the livestock yet. 
 
Good luck with the quest 
 
 
Ronen