Just get any that's rated the best on newegg, like these:
http://www.newegg.com/Product/Produ...&bop=And&ActiveSearchResult=True&Order=RATING
Stick them anywhere in your case. I hid mine on the top side of the removable side panel and bottom side. You could also get UV cathodes and buy UV reactive wires so they glow. Take a look at this Apevia PSU (it's just an example, stick with the one you've chosen already):
under UV light, the green wiring glows. You could also do UV traces on your motherboard. It's basically drawing the copper traces on your motherboard with a UV pen, so when the UV light hits it it glows. Here's a pic:
Tracing the motherboard will void the warrant.