I am in a school psyc program as well. If you select a program where the professors are active in publishing their work, and their interests approximate yours, you should have no problem getting the research experience you are looking for. If you are concerned with prestige, be aware that school psyc. does not usually reach the levels of clinical programs.
In terms of the clinical piece, attending a clinical psychology program will probably give you a more thorough course sequence in child and adolescent therapy, thought not necessarily in assessment. One of the primary roles of a doctoral level school psychologist is to be an expert in child development.
If you interview well and have the drive, you can get the same quality of field placements as a school psyc student as the clinical psyc students get. I am located in an urban area where I have worked at nationally recognized institutions alongside clinical psychology students for my entire grad school experience. I've made an extra effort to find good mentors and supervisors, and have done a lot of independent reading to help account for the coursework that my peers in clinical psyc have that I lack. Am I as skillful a clinician as clinical psyc students with the same number of years of training? I hope so but cannot answer that question objectively.
As Aagman01 mentioned, the "perk" is the option of certification and employment as a school psychologist. There's a discussion thread at the top of this forum right now entitled "60K to work with borderlines all day" or something to that effect. The general consensus among posters is that clinical psychologists are many times underpaid for their work and skills. There are a good number of school districts out there where as a PhD, you start a drop below 60K, increase your salary steadily to way above that number, and only work 10 months a year. In more expensive areas like New York and California, the upper salary limits are in the 100k area. There are cons to this kind of position, mostly related to "independence" as a professional, but the benefits, security, hours, and stress level are major pros. Plus I'd rather work with kids all day than borderline patients
Good luck, and I'm happy to answer more specific questions about school psyc if you have any.