I suggest the same as Duce. Just because you have 50 buyins for $11 SNGs does not mean you are ready to play them. You need to have the skill and experience, and the sample size to prove you are a winner at the lower buyin SNGs.

And as I said you don't need to throw in a couple of hundred dollars to get started if you are even remotely new to poker. Yeah of course you won't be able to jump into the bigger games asap, but you aren't ready for those games. So you only need to invest a small amount to start. It will just take longer, but it will be worth it because you will gain valuable experience you will need to improve.