The below recommendations are based on personal experiences with the respective companies. Failure of any company to appear on this list should not be taken in a negative fashion; it may just mean we have not worked with them.
Web Hosting - For your StoreFront based site you won't go wrong with Applied Innovations.Their rates are good, have great features and outstanding support, should you need it. I host exclusively with them.
Merchant Account - If you're in need of one start with Web Merchant Services. Their rates are the best I've seen.
WebSite Developers - You're thinking why are I make recommendations here. It is simple, I primarily do site enhancements, taking a new or existing site and give it the specific functionality you want. If you're looking for someone to build a site from scratch though you may want to consider these folks.