Encoding PC build in progress. Suggestions?

I haven't built a PC in about 6 years and would like something to encode HD video quicker than my current setup. Most use will be seen making backups of my growing Bluray collection, and also converting them to MKV's for a NAS. My current PC takes way too long. It took about 15 hours to convert Blade Runner on Bluray to MKV using Handbrake. Too damned long. I will of course use the PC for other regular day to day type usage ie. internet browsing, MS Office, etc.

I've already bought:

• i7 3770K
• Windows 7 Pro 64 bit (OEM)
• Samsung 840 Pro 128GB SSD for the OS
• LG Bluray Writer (WH14NS40)
• ASUS Bluray ROM (BC-12B1ST/BLK/B/AS)
• I have a few external HDD's

Still need:

• Case - looking to spend $150 or less
• Motherboard (looking at GA-Z77X-UD5H-WB) I've never overclocked, and would consider doing so. Reviews I've read give this MB high marks.
• Power Supply
• CPU Cooler/Fan (air or water cooled?) $80 or less preferred
• RAM (how much, 16 or 32GB and is 1600Mhz "fast enough"?) Needs to be 1.5v to work with above MB. Looking at (CMZ32GX3M4X1600C10) Not exceeding $160 or so preferred, but I can spend a little more.
• Video Card - I assume since I'm not a gamer, I don't need anything too extravagant/expensive. Would prefer $100 or less unless it is beneficial
• Internal Hard Drives (thinking of getting two, maybe three 1TB or larger) Someone suggested WD Black drives. Is three overkill?
• Maybe a few extra case fans

Any Suggestions/Pointers on the items I still need? Anything I've forgotten? I've had a few cocktails. ;) I'm also not opposed to using rebates. Thank you so much for your time.