ASUS VH236H Black 23" 2ms Full HD Widescreen LCD Monitor w/ Speakers 300 cd/m2 20000 :1 (ASCR)
$169.99 and a $20 rebate makes the final price $149.99. Free shippinghttp://www.newegg.com/Product/Product.aspx?Item=N82E16824236059
This monitor has builtin speakers and would help you make do so you could save and get a good decent set of speakers.
The build that you put together looks good and so does the monitor which has a $30 promo code that ends today so if you wanted to take advantage of that you would have to pull the trigger pretty soon.