I am new to diving (haven't done it yet) and plan to start classes in a couple weeks. Hopefully I can get some advice 
I've been reading these forums and haven't found much talk of IDEA certification. I know they are a part of the umbrella organization RSTC, along with PADI, SSI and some others, so I'm not worried about inadequate training. I'm mainly interested in the availability of use of an IDEA card on diving trips.
I've been reading that most places will allow you to demonstrate your proficiency to the DM and then you could dive. While I could do this, it would be easier for me to get a NAUI card and be accepted easier. Which leads me to my question, NAUI or IDEA? I have access to both, but no others.
Lastly, I read that you could crossover after a certain amount of training to a different organization. Would it be easier to cross into PADI with a NAUI or IDEA cert? I assume IDEA would be easier since they are both RSTC, but I'm just guessing.
My apologies for what is most likely the most hated of all questions here, "A" Cert or "B" Cert. The names don't matter to me. I just want to be able to have the least amount of hassle as possible. For that reason, I would do PADI (they are the largest worldwide?) but all I have is NAUI and IDEA nearby. I am leaning toward NAUI because of the feedback on them from this forum, conversely, I am leaning away from IDEA because of the lack of comments on them, as well as NAUI seeming to be #2 in terms of worldwide availability.
Any advice is appreciated and I look forward to hearing from everyone

I've been reading these forums and haven't found much talk of IDEA certification. I know they are a part of the umbrella organization RSTC, along with PADI, SSI and some others, so I'm not worried about inadequate training. I'm mainly interested in the availability of use of an IDEA card on diving trips.
I've been reading that most places will allow you to demonstrate your proficiency to the DM and then you could dive. While I could do this, it would be easier for me to get a NAUI card and be accepted easier. Which leads me to my question, NAUI or IDEA? I have access to both, but no others.
Lastly, I read that you could crossover after a certain amount of training to a different organization. Would it be easier to cross into PADI with a NAUI or IDEA cert? I assume IDEA would be easier since they are both RSTC, but I'm just guessing.
My apologies for what is most likely the most hated of all questions here, "A" Cert or "B" Cert. The names don't matter to me. I just want to be able to have the least amount of hassle as possible. For that reason, I would do PADI (they are the largest worldwide?) but all I have is NAUI and IDEA nearby. I am leaning toward NAUI because of the feedback on them from this forum, conversely, I am leaning away from IDEA because of the lack of comments on them, as well as NAUI seeming to be #2 in terms of worldwide availability.
Any advice is appreciated and I look forward to hearing from everyone
