I want to make something similar to the WiFi settings page: when you tap the table cell, put a checkbox in the left side of the cell, and have a disclosure button accessory
Of course you can do that :) For example use UITableViewCellStyle
UITableViewCellStyleDefault, // Simple cell with text label and optional image view //(behavior of UITableViewCell in iPhoneOS 2.x)
...and put a custom "checkmark" image in that "optional image view".