Need advice on my new box

I used to build my own but haven't bothered in years so I am a bit out of the loop.
Did I do a decent job buying all these parts off of ebay/amazon/newegg

ASUS P8Z77-V PRO $89
Intel Core i5-3550 3.3 GHz Quad-Core(Ivy) $145
Corsair Vengeance 16GB (2x8GB) DDR3 1600 $120
MSI NVIDIA GeForce GTX 650 Ti Boost OC 2GB $169
Kingston SSDNow V300 Series 120GB (SSD) $85
COOLER MASTER HAF 932 Advanced case $76
Rosewill HIVE Series HIVE-550 PS $14

I think I could have gotten the video card for a better price but I spend a week trying to win bids on ebay so I grabbed it from amazon.

I still need a monitor and was wondering if BenQ monitors are worth it and if Displayport is really any better than DVI or HDMI.

On edit: Forgot to order a CPU cooler.