Hey guys , I have been posting on this forum alot about this

and had just another question , so i just want to get my bolt site up and i contacted hostgator and asked them to give me a plan where i get SSH + domain name + LAMP stack , they replied back say i should go for the LEVEL 4 package See here
http://www.hostgator.in/vps-hosting.php , thats a bit expensive

, but if thats what will give me what i want , i can consider it , as i really want to have my bolt site up ...
can i go with a plan thats cheaper and still get what i want ?
Also when i go to the next page a drop down appears and i have the following options:
- centos6
- ubuntu 12
What is that for ? All of this is really new to me , so please go a bit easy
