Pokémon Yellow and Pokémon Soul Silver

[cheyinka]

So I beat Pokémon Yellow ( *finally* )

Having previously only played Blue and Yellow, Soul Silver is quite a contrast - Wrap, Clamp, and Roar are 100x 500x (changed my mind after discovering clamp now sucks too...) more annoying, but the better menus, the wider variety of monsters, and the more-interesting battle animations are all very nice. (Also, I really like that moves like fury swipes with multiple hits have individual chances of critical for each hit, rather than using the first hit's damage.) Has anybody else jumped straight from 1st gen games to 4th gen? Is there anything in particular I should look forward to (or dread, I guess)? :D