I am ready to upgrade all the equipment on my planted 30 gallon long tank. Everything that I have now doesn't do the job properly, shows itself too much in the tank, freaks me out (the light, especially), or I need to get better growth out of the plants. I do need to keep in mind that I can't spend $2,000. You guys just need to throw me some ideas and advice, and I can do the bargain shopping from there. I want to upgrade nearly everything from equipment to ferts!

Here's what I have now on the tank:
-AquaClear 50
-Odyssea PC 36" 96W 10,000K
-DIY CO2
-SeaChem Ferts
-Hydor Theo 150W heater


What I have in mind:
-Eheim cannister filter (I need to know what size for overfiltration for a 30 gallon.)
-CoraLife PC (Is 192W too much?)
-Pressurized CO2
-Greg Watson Ferts
-In-line heater (this maybe the last thing I upgrade)
-UV Sterilizer
-Maybe even some DIY acrylic lily pipes.