510142 Searchable Database For Website But Mostly Cell Phone Users

Looking for someone to build a pretty simple, searchable database for my website (I plan on doing the front end myself for now). Probably not much different from a simple dating site. The website will be a paid service where the user must sign up with a credit card to access and search the database. They can pay for a one-time 24 hour use, pay a monthly automatic recurring fee, or pay one full year in advance to access the database. There will be a Table of Users with their payment info, and then the Main searchable database of the info I am providing. The Search Input Form should have two different fields to search from, and return about 5 fields in a table I guess. The returned data will have links to individual pages with more detailed info about that record. VERY IMPORTANT - the database must easily be searchable and viewable on any (or most) types of cell phone. Starting off with only a couple hundred records. I don't anticipate a huge amount of records over time but who knows. I'm not sure if any of that matters but I am concerned about using the best database technology for what I am trying to do without having to have to switch to a different technology later on because of size or speed problems or getting hacked into. Security needs to be top notch. Can't have hackers accessing the data. Not sure about how much administration would be required after the site is launched, if I could handle that, or if not, how much that would cost as well. I want to be able to monitor and add any new user-submitted records myself. There will be photos on the details pages. If a new record is accepted, the user gets one month credit for free website use or if not a member, they will get paid somehow. Please submit your proposal explaining which database technology you would use and why and any links of your work that you can provide.