Wow! Thanks for all of your help
Here is what I did. First I can get a free edition of the CAD Software because I am a student (full software) and it is made for Mac as well as PC. I will add more ram myself (double the gb of ram to 8 from just 4) and I downgraded the size from 17" to 15" (so it will fit better in a backpack)
Here are the new configs
2.5GHz Quad-core Intel Core i7
4GB 1333MHz DDR3 SDRAM — 2x2GB
750GB Serial ATA Drive @ 7200 rpm
SuperDrive 8x (DVD±R DL/DVD±RW/CD-RW)
MacBook Pro 15-inch Glossy Widescreen Display
Backlit Keyboard (English) & User's Guide
Accessory Kit
total price: $2485.48 (tax and education discount included)
I checked out lenovo and I really didn't like their product. I tried building a HP envy with the same fetures as the MacBook and the difference came in at less than $100. So I think a Mac is my next computer. I am going to buy it in April so I have 4 months to learn apples OS. Thanks again for your help.
I have heard once you go mac you never go back!