SAMSUNG 830 Series MZ-7PC128B/WW 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD)
$199.99 and free shippinghttp://www.newegg.com/Product/Product.aspx?Item=N82E16820147163
This one is a desktop upgrade kit;
SAMSUNG 830 Series MZ-7PC128D/AM 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD) Desktop Upgrade Kit
$199.99 and free shippinghttp://www.newegg.com/Product/Product.aspx?Item=N82E16820147134
This one is a notebook upgrade kit if you were using it to upgrade a laptop.
SAMSUNG 830 Series MZ-7PC128N/AM 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD) Notebook Upgrade Kit
$199.99 and free shipping.http://www.newegg.com/Product/Product.aspx?Item=N82E16820147137
With the same SSD you have three options to go with , a just SSD , a desktop upgrade kit or a notebook upgrade kit. Same SSD just three options all the same price. So you can go with either the Intel or the Samsung SSD. I have had Intel SSD's amd found absolutly no problems with them and they were the early models at that.
The 128gb size will give you enough room for the OS and a few games along with your most used apps. Personaly I think that the best size for a main boot drive (C-drive) is a SSD of 240gb , however the cost is high enough to drive most people to the lower capacity SSD's. So for about $200 you will get a 128gb SSD and one that is very stable and reliable.