So i just got my Spark and it’s great, i’m doing ok with it so far but one of the reasons i bought it was to try to make a networked led strip and most guides/strips i’ve found need a 5+ volt supply. What sort of power supply/other thing should i use and how would i connect it to avoid frying something? I’m pretty much a novice when it comes to electronics so forgive me if this is a) really obvious or b) missing some obvious step.
Thanks!
If you power the 
core using a USB outlet, you can power the led strip via Vin.
Just make sure that the outlet has high Amps output sufficient for your led strips.
Otherwise, you can use a separate 5V supply for the led strip and only wiring up ground and signal to the core and 5v and ground from the supply to the led strip 
you might want to clarify you mean a powered USB hub or phone charger, not your computer's USB port which will be 500mA max, most of which will be used by the Spark.
Ah thanks for that, i was a little confused. So if i used the usb for the spark it would get the voltage needed to output 5v from the Vin pin, is that correct?
Using a USB hub for powering your LED strip may not be enough. For the Message/Twitter torch, I used an external 5V, 3A power supply that powered both the 4m neopixel strip and the Spark (the two wire connector). I connected the 5V supply to the Vin of the Spark. Note the 0.1uF capacitor between Vin and GND to act as a power filter. 
Just out of interest - what made you add the extra decoupling cap ?
AndyW, the +5 supply wires are somewhat long and the power supply is a switching type supply so I decided to decouple just in case.