There is a lot of really good advice from previous posters so I hesitate to add much. For a beginner 5/8, round-point sounds good to me too. I still consider myself a beginner - I resurrected the electric cos I slipped last weekend. I think the advice of a B/S/T Dovo is great. Unlike most vintages I believe the metal is harder and may take longer before it needs to be honed.
Clay, why are you getting into straights? If it's strictly for utilitarian or economic reasons get 3 razors, a good strop and soap and don't look back (one to use, one as backup, one to send out, if necessary). If you like the looks of straights and can afford it, then buy everything in sight til you strain the bank account (that's what I did). ADs can be fun. You will get tons of advice and opinions on this.
Go slow and easy to start with, read and re-read the wikis, get comfortable with your new skill, then tailor the experience to your personal likes, dislikes and moods. I think THAT is the best reason to "go straight" - it can be like graduating from "fast-food" to a high-end brunch buffet at a fine restaurant.
"Order", as practiced by humans, is over-rated. It invariably becomes oppression.