Steve! - Valium!
I personally like the posts that allude to working with the tank you have. Stay within the limitations of the setup you are running - WHEN you upgrade - then get the different fish you want. I have 3 tanks running now, separated into a softie and stony environment, and I keep fish that will live as long and healthy life as possible under my care in those tanks... now I'm making room for MORE tanks.... 
__________________
135G Mixed Reef. Bullet 2, 25 gal refugium, 2 X250W MH + 4X 96W PC\'s, DIY Calcium Reactor, Coralife 1/6 HP Chiller, Phosban, Tunze, 2 closed loops & SQWD\'s, Seios, Coralife 4 stage RO/DI & a bunch of other expensive gadgets... I may never retire, but I'm gonnahavahelluvanaquarium!
|