Ok, if developed on the gamer one may do ok.. But you have alot of competition..
What kind of "LIVE" gamers site would it be.. Are you capable of developing something that is potentially too complicated. Ask yourself these few Q's, tell us your ideas.. YES the domain sounds nice (just a lil bit) but in reality as a domainer how will you develop or even begin to market it to a reseller. This is a "halfazz" domain and "halfazz" domains are available to reg all over the place. Why would a developer buy from you when he or she can pay regfee somewhere else.
All i say is.. Think, think, then spend that $7...
It may not seem like alot but once you have 100 domains you will start to see why mistakes need to be fixed asap or even avoided.
You say you have 20 names. From what i see here from the ones you've shown I can imagine that these are the "best" of your 20. If that us the case you in big trouble..
One more thing. In the future... Rather than spending $160 on 20 pieces of chicken meat why not invest that same money into one or two better domains.
ok.. I will shhhhhh
best of luck!
Larry Fling