Cages which is best?
All of people have trouble choosing a cage i like wire cages other like tanks

below i will list all kinds of cages

-10 gallon fish tank
- 1 story wire cage
- habitrail
and
the s.a.m for more infomation please check out
http://www.petco.com/

Picking out a hamster
When purchasing hamsters it is best to get animals from a well established pet shop or breeder. Before purchasing you should note the cleanliness and living conditions of the animals. If the cages are clean and the animals appear happy and well kept, then this should ultimately reflect the quality of the animal. Avoid getting hamster from unreliable sources such as small cramped pet shops. If you intend to breed hamsters then it is best to visit a breeder to help you get hamsters. What you should look for in a hamster:
What you should look for in a hamster:

It should be in the age range of four to eight week of age
Its cage must be clean with water and food
Select a colour which appeals to you
The nose should be dry to moist with no discharge
The eyes should be round, wide open and clear with no sign of staining of the fur.
The fur should be smooth and unbroken with no signs of breaking
It should have an alert inquisitive manner and not be alarmed by handling.
For first-time owners you may find purchasing a male hamster is preferable

Special thanks to http://www.hamstercare.co.uk! thank you for the info