I am glad to hear that the comments you read did not put you off as Corns are such lovely creature.
I would also recommend (like Tracee said) that you do not get a hatchling but an older snake as their temper/feeding habit are better known when they are older.
I got my first one when she was 4 months old and I went several times to the petstore, I held her more than once and even though she was in blue (shedding period) she was very sweet and did not try to tag me (bite). The person at the petstore told me she was a good feeder, that she never had any issue, told me what she ate and how many days appart.
I did hold several snakes, saw which one had the best temperament for me as I wanted as a first snake one that was easy going, able to mellow when picked up. I asked the man to hold her and another male but I ended up going the next day to hold her again as I had dreamed about her so I just said "mine mine mine"... LOL ... I have never regretted it, she is gorgeous and very nice tempered except when you want to take her out of her tank, she think she is a rattle-snake. Don't worry, it is nothing unusual for a corn, she does it all the time but as soon as she is out of her tank, she stops
It is true that Bloodred have had got a bad reputation but they do have a tendency to be less "submissive", they have a stronger character than most Corns.
The best thing you can do, go to the petstore, ask to hold several snakes and chose the one you feel is the most for you. I personally did not pay attention to what she looked like (eventhough she is a beautiful normal) but looked for the character which was the most important feature for me.
But, don't forget, take your time, don't go for it because you want one or you are being pressurised by the petstore to get this or that one right now, they can always reserve them for you. Go there several times, asks lot of questions, don't be scared of asking a lot of questions and if you are not happy that it has been answered fully, ask it again! If you are just being told "no, yes, don't worry about it" ask the reason why for the "no, yes, don't worry about it". Go back to when like when you were 7-8 years old and ask a lot of questions.
Someone that knows about corns and love them will not mind all your questions and will be happy that you are asking so many questions which means that you intend on taking good care of it.