user12284: I plan on mining litecoins, but I'm somewhat late and new into the game. Would it be better for me to get a video card later, tight on budget? 
I'm not sure how to do the math. There isn't any overhead costs; I just want to build and let it run. I can build three rigs, all with 2 x E5 2620 and 32 GB RAM. How much would I produce per day? 

user12274: Using a CPU is a bad idea; a GPU is better. Good AMD...  The best AMDs are hard to find or impossible to find, but the AMD R9 280x and 290x you can find (second-hand on eBay if you don't see them on Newegg, etc..) Sort the chart by GPU, or in your case CPU, search for your CPU...  
I tried to play with mining with an i7-3770, and it wouldn't. I don't have any idea why. I had to tell CGMiner to use my GPU which is NOT an AMD, thus horrible. I could mine Coinye coins, but who cares about that.
The page Mining hardware comparison is great for your question.

12284: <p>I plan on mining <a href="http://en.wikipedia.org/wiki/Litecoin" rel="nofollow">litecoins</a>, but I'm somewhat late and new into the game. Would it be better for me to get a video card later, tight on budget? </p>

<p>I'm not sure how to do the math. There isn't any overhead costs; I just want to build and let it run. I can build three rigs, all with 2 x <a href="http://en.wikipedia.org/wiki/LGA_2011#Server_.28Xeon_E5-16xx.2F26xx.29" rel="nofollow">E5 2620</a> and 32&nbsp;GB RAM. How much would I produce per day? </p>
 12274: <p>Using a CPU is a bad idea; a GPU is better. Good AMD...  The best AMDs are hard to find or impossible to find, but the AMD R9 280x and 290x you can find (second-hand on eBay if you don't see them on <a href="http://en.wikipedia.org/wiki/Newegg" rel="nofollow">Newegg</a>, etc..) Sort the chart by GPU, or in your case CPU, search for your CPU...  </p>

<p>I tried to play with mining with an i7-3770, and it wouldn't. I don't have any idea why. I had to tell <a href="https://en.bitcoin.it/wiki/CGMiner" rel="nofollow">CGMiner</a> to use my GPU which is NOT an AMD, thus horrible. I could mine <a href="http://en.wikipedia.org/wiki/Coinye" rel="nofollow">Coinye</a> coins, but who cares about that.</p>

<p>The page <em><a href="https://litecoin.info/Mining_hardware_comparison" rel="nofollow">Mining hardware comparison</a></em> is great for your question.</p>
