3 Pokemon weak to electric attacks (Charizard, Starmie and Articuno/Gyrados) 3 Pokemon weak to Ice attacks (Charizard, Dragonite and Golem)
There's a couple of places you can get movests and recommendations, but I would suggest giving any team a couple of trial runs on Netbattle Supremacy prior to training up your squad.
www.smogon.com - Has movesets for pretty much every Pokemon going, but their R/B/Y analysis is a bit out of date
http://www.rby2k10.proboards.com/index.cgi - That message board is very much the main remaining competitive R/B/Y-based community, and they can advise you on your squad and help test your team on their Netbattle server. --- Where logic won't work - I will PAL Gamers unite - http://www.gamefaqs.com/boards/277-pal-gaming
One thing I will suggest is you check your team for weaknesses, and if there's more than 2 weak to any 1 type of move, strongly consider replacing one of those pokemon.
In serious competition, you should be particularly aware of Ice and Electric attacks as they tend to be common. Move types such as bug and fire can generally be overlooked as they're almost never used. --- Where logic won't work - I will PAL Gamers unite - http://www.gamefaqs.com/boards/277-pal-gaming