Spray Brush

Not enough information,...What will yoube painting? How much can you afford to spend? Usable air brushes start around $40 USD (Paasche H) which is a single action and is quite good for most modeling applications.
Compressor...canned air is unrealiable at best and useless at worst. It's also prohibitively expensive and environmentally unsound (You keep throwing those cans in the landfill). You can adapt a spare tire or use a refillable propane like tank, but you'll need to keep running to the service statio for air. Compressors are noisy for the most part and a good one will start at about $100 USD. There is one available from Micro Mark for about $180 USD that is virtually silent.
You can find a $15 USD airbrush from a variety of makers. Don't waste your money, it's only use is to lay down a single color. The spray pattern is way to wide to do any kind of camo application.

I'm hoping to get an airbrush that's able to do fine lines and also wides areas. Tamiya has one compressor that comes with an airbrush. What are your suggestions?

Spray-Work Basic Air Compressor w/ Airbrush:
http://www.tamiya.com/english/products/74520basic_comp/basic_comp.htm

Thanks in advance

I didn't see a price and in several years online and well over 20 years in clubs, I have never heard of anyone using this. Note, you have a maximum of 20 minutes run time before recharging the batery. Expect to take at least one charge to do a two color pattern, and two charges to do a three color pattern. Things look very proprietary, i.e., if one part fails, the rest cannot be easily replaced.
I'd avoid this and save up for some better equipment.

I have a friend that has one of those Tamiya spraywork sets. I'ts pretty basic and as it has no air tank it pulses air, making painting even lines pretty hard. It is mostly plastic. Also you cannot spray very fine lines with it.

I would reccommend a Badger 150, pretty simple to use, double action and has three head and needle sizes available. I've had one for over 15 years. A compressor with an air tank is a good idea, it's what I use, but as with all air sources it's really the regulator that makes or breaks it. Some people swear by CO2 cylinders.

I guess you're likely to get as many different answers as there are air brushes, since everyone has their favourite!

The Badger 150, noted.

Are there any more models out there which are simple to use, affordable and good enough for starters.

I plan to compare to actually get the right type. Afterall, this is going to be a worthwhile investment.