Just saw this thread.
It shouldn't be hard to convert normal GW-ers into Blood Bowlers. Everyone can play their favorite Warhammer race and all it takes is a dozen models or so. The rules are straightforward and the game is amazingly well-balanced. On Boardgamegeek, for instance, it has one of the highest ratings of any game.
I don't have the time or the resources to collect, paint, or play one of the more involved games like Fantasty, 40k, or LotR. But, building and painting and developing a Blood Bowl team is the perfect amount of hobby investment for me, and it's fun to watch your players gain XP and level up across a season.
Lizardmen are really quite good, though they take some skill to coach well. They can field more Str4 or higher players than any team out there, so it makes it tough for opposing coaches to push their way across the pitch. Additionally, skinks are some of the best scorers in the game, given their incredibly speed and ability to dodge. But, the team can be a challenge because half the team can't pick up the ball and the other half is quite weak (though, on the other hand, half the team are powerhouses and the other half are amazing runners).
There are two main lineups I would use for a starting lizard team:
6x Saurus
5x Skink
3x Rerolls
6x Saurus
4x Skink
1x Kroxigor
2x Reroll
Either way, you should max out the Saurus right away at six. Personally, I prefer the second lineup. Lizards really need rerolls, but the extra muscle on the pitch helps a lot and limits where the opponent can go. Plus, the krox's prehensile tail makes it tougher for elves and humans to dodge away.
I've got a link in my signature to my custom Blood Bowl modeling thread, but if anyone is interested I'd love to talk more lizardmen blood bowl strategy here, such as basic plays, tactics, formations, etc.
I've got a lizard team in a league right now that's 3-1, with their only loss coming in the last turn of an Overtime game.