I currently have VPS server and I pay around $75 per month and I get:

40GB HD
2Gb RAM
100GB BW
6 core cpu (but i dont use much)

I have only one live website running and traffic is only max 100 user visit per day. I mostly do the my testing stuff and some of my inter sites for playing with coding.

But I do need one server.

I am thinking of moving to Amazon EC2 if the price diff is not so much because then I can learn some more stuff.

I am thinking of getting the 3 years Heavy utilization Reserved instance because my server will be running all day and night. I tried their online caluclator

with

Medium Instance Heavy reserved for 3 years for EC2 it comes $31 per month(effective price) and for EBS and S3 , I think even if thats it $40 for all other stuff. I will be at no loss for what I am getting at present. Am i correct or I missed something??

Now In my current VPS I have Apache for PHP sites and MOD wsgi for python sites.

I am not sure if I will be able to do all that stuff in Amazon EC2. Can I host python and PHP sites both in Amazon EC2 instance using Named Virtual Hosts and Ngnix