Prices are going to vary depending on where you go, also with what wattage for the lights and what size for the background... making your own background is alot cheaper and so much fun too
Those compact UV globes are priced between $32 and $43 @ Herpshop.
And definately make your own background, Im in the process of doing so no and its coming along really nicely, looks HEAPS better than a bought one, ill post pics when Im finished