Fis,
I will try to help. This is a common question to a degree. When it comes to the Tornado, the next question is price. How much are you looking to spend?
Cheapest Option: Get a used Tornado Whirlwind. It is an "ok" table and is not very expencive. I am sure i am going to catch a little flack for this but, it is what i learned to get good on. You can get competative playing on it. It is not perfect but it isnt bad. Expect to pay about $200-300
Better Option: Storm II or Used Coin-Op. You can get one of these for about $300-600 depending on what you get. If you get a storm NEVER pay more than $400 personally that is a little high. If you look around Craigs list you can find a used one for pretty cheap.
Perfection: If you really want to get into it you can get a newer coin-op and they will run you about $1,300. But from what i hear you are not looking for this.
Here is the bottom line, where ever you go; to a bar, a touring players house, or just want to say that you have the same table the pros use. Tornado is the only way to go. The other tables are just toys. (Sorry Bonzini guys, that table is nice but for me it is a toy, and yes i love playing on Bonzini).
Have a good one! Let me know if you need anything else! Thanks!