Personally i just went to a few furniture stores and had a look around if you find a place that makes the beds themselves they may be willing to file down any sharp edges for you before staining etc.
I didn't go with the toddler bed as i didn't see the point in spending a couple of hundred now only to upgrade DD in a year, she loves her big girl bed.
The best suggestion i was given was let them sleep on the mattress on the floor first, that way they learn the boundaries of the mattress (size wise) but don't fall far, DD slept on her mattress for a few months and went into her bed with no rails and has only fallen out maybe 3 times.
oh gosh, we just got DD an ensemble. We took the feet of it (so it sat on the floor) until she could climb into it properly. Never even occurred to us to get a suite....we've never had matching furniture for her though anyways.
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