and I'm really into Burton so that's pretty much all I'm looking for at the moment.
This is probably a foolish attitude. You really need to keep an open mind to find the best deals and the best gear for you.
First of all, what's your experience level? What type of runs do you do, how often are you in the park, and how good are you?
link: Best Prices on Burton Blunt Snowboard 147 - Mens Snowboards Snowboarding Gear Equipment
Honestly, not a great board. Extruded base I believe, and overpriced for what you get.
I'm stuck on also picking up bindings as I've read that the Freestyle bindings are relatively cheap and break easily but I've read some comments where people say it's the best thing ever so I'm torn between Freestyle or Custom
Both are shit. If you must have Burton bindings, look at nothing lower than the Cartels or Triads, and even those are overpriced for what you get. Look at companies like Rome, Ride, and Bent Metal.
I haven't really researched boots yet but anything Burton I don't mind.
You need to try on a bunch of boots from different brands to find something that fits. Try K2, Salomon, Celsius, Northwave, Vans, and DC. If you only look at Burton you are an idiot.