Definitely worth a try.
I am still a second class photographer, way behind Gary Watt (First Class Photographer) and I can only encourage you to give it a go.
Before you get started I would review the basics about photography.
It is no rocket science but you have to understand certain things to take good pictures.
Once you mastered that step, you can go out and practise, practise and again practise....
I can't tell you how many crap photos I have at home when I started a couple of years ago......
Then once you think these are airliners.net material, you have to work on the post processing part. For me this is the most difficult part and valuable.
A lot of times the scanning and post processing technique can result in added or rejected images.
Another advise....if you upload to a.net, just start with bagdes of 3-5 images at a time. Have them processed and then continue.
It does not make sense to upload 100 images, which might look good on your screen, but the a.net screeners think about it differently.
This might save you time and a lot of headaches.
Just ask any forum member, we had tons of people come here complaining that they sat hours in front of their PC, uploading images. In the end all of them were rejected.
Just one final note....we all here are a very friendly group and you can pick our brains when ever you want.