"I'm not sure i agree with your opinon on having to have prior training in grappling arts to succeed in Aikido. I had NO prior experience in grappling, just a little TKD, and i am coming along just fine.
In my opinion all that it takes is an open mind and a willingness to learn to succeed with Aikido."
Heh heh, an 'Open mind' would have imagined the usefulness to have grappling experience to add to your aikido vocabulary. Seriously though, do yourself a favour and ask a friendly bjj or judo guy to show you some stuff with grappling under dojo conditions. Ask them to take you down earnestly and pin/hold/choke/lock/submit you as they see fit. Try your hardest not to get thrown down and if they do manage to bring you down, try your hardest to get finished off. It doesn't matter whether you get through it unscathed or not, but the learning experience will open your eyes a bit.
To Michael, seriously...low point. Too embarrassed to say.
I HAVE done that, with a friend of mine who studies BJJ. I was disagreeing with the PRIOR part about it. And i stand by that, i 100% believe that even if Aikido is your first and primary Martial Art, you can most definitly succeed.