2 questions relating to laptop accessories

So I finally ordered my laptop, I am super pumped!  I have never had a laptop before!
So here is the specs

System Configuration:
Chassis Model: Digital Storm x17 Laptop (Model: 9170)
Display: 17.3 Inch (16:9) (Resolution: 1920 x 1080) (Glossy Surface) LED-Backlit Display
Processor: Intel Core i7 3610QM (2.3 GHz Turbo Mode to 3.3Ghz) (Quad Core) (6MB Cache)
Thermal Compound: Premium IC Diamond CPU and GPU Thermal Compound (Reduces Thermal & Laptop Noise) <b></b>
Memory: 8GB DDR3 1600MHz
Primary Hard Drive: Intel 240GB SSD (520 Series) (SATA 6Gb/s) <b></b>
Secondary Hard Drive: - No Thanks
Optical Drive: DVD/CD 8x Multi-Drive (Writes and Reads DVDs, CDs)
Wireless Card: Bigfoot Networks Killer Wireless-N 1103 (Reduces Latency for Online Gaming) <b></b>
Video Card(s): NVIDIA GeForce GTX 675M 2GB with NVIDIA Optimus Technology <b></b>
Windows OS: Microsoft Windows 7 Home Premium (64-Bit Edition)
Warranty Plan: Life-time Expert Customer Care with 3 Year Limited Warranty

Sub-Total: $1,996.00

so the Questions I have are this

1) Do I need a laptop cooler?  I will be playing games on this guy mainly.

2) Can anyone recomend a specific laptop bag.  This bag will be the home for my puter whenever I am not using it.  It will get a lot of use.  I am looking for something affordable, durable, and that has protection.  This will be going to work with me all the time, and also it will be travelling with me when I fly.  ideally less than 70 dollars.  Also the only thing going in the bag is a mouse and a cooler if i need it! 

Thanks! 

for bags personally i prefer buying a sleeve (sleeves are much more protective than bags) put the laptop in that then put the sleeve in any bag you like with the mouse and cooler if needed :)