Hipro are alright. The reason you don't hear about these companies--Delta Electronics, Lite-on, Bestec, Hipro, etc, is because they manufacture almost exclusively for major companies, in ginormous quantities for use in low-end PCs. They're better than the whitebox junkers you may get at a mom&pop store for $20 or off ebay, but not up the standards of a high end enthusiast unit.
Anyway, the Ultra LSP series are garbage. Avoid them.
What GPU are you planning on getting, and what's your budget?