To add. Good choice on the Arcadia uv, you want the 12% D3+ T5, best uv by far. You want to create a photogradient (light and shade) that matches your temp gradient. A 3ft tube will be perfect for a 4x2x2 viv (which is the minimum size needed to create the correct temperature gradient).
Regarding a heat bulb, any household spot or halogen will do the same job as a reptile specific spot bulb, they are exactly the same except for price. You are literally paying for the brand name and image when you purchase a reptile branded bulb.
for further info on photogradients.