AvaFX only showed up in the reviews recently, so there hasn't been a lot of time to see what people think about them yet.
SNW will cost you about $300/month. I've never heard of anyone getting filled 100% of the time, and some trades will go against you, even with SNW, so you would need a decent sized account to handle the occasional drawdowns and still would have to make $300 profit each month just to break even. Of course, you want to make money, not just break even, so that increases the amount of starting money even more.
I think I'd want to know quite a bit about a broker before I placed $10,000 or more with them.
I am not saying AvaFX is bad, just that I don't have enough information to trust them with large sums of money. Maybe they are ok. Maybe they aren't. Either way, that's a LOT of cast to place with a brokerage that there isn't a lot of info on yet.