Preliminary Google searches provide the following:
Checklist: Starting a Limited Liability Company (LLC) - Small Business
I just glanced at it, and it seems OK for your purposes.
Five Realistic Steps To Starting A Game Development Company | Make It Big In Games
This seems like a good read too, although you may very well know everything there. It can't hurt.
All of the fees for making an LLC should be tax deductible, so see an accountant in order to cash in on those deductions.