All SSDs have a chance of breaking after only a few years, they dont have a very high write tolerance to them, which is why having a HDD for mass storage is the way most people do it.
Intel SSDS are a lot more expensive than they need to be.
I have an agility 3, and its been great so far. Plus for the cost, you could get 2 agilitys on sale for the price of one intel.
The samsung SSD's have a great price/performance ratio.
If you get a radeon 7950 instead of that gtx 660, youd save about 50 bux, and with the current never settle deal, get 3 games for free.
The other thing i noticed, is you didnt include an OS. Do you need to purchase one?
Being black november and all, subscribe to neweggs emailing list, as they send notifications of all their crazy black november deals, and be on the lookout for some real steals.
I got my agility 3 on newegg for $60 after rebate, cant beat that deal.