I recently bought an HP Desktop. The 110-414 model with the promise of being able to upgrade the internals. Upon doing a little research I realized that it uses a mini itx Motherboard. Are there any good recommended replacements? I'm looking to turn it into a light gaming PC and the stock MOBO just won't do. I'll also need to upgrade the Power Supply so I'm wondering which will fit in a microtower. Not a slimline, but the microtower.