data feed in online store

I need someone to put all my products into a data feed, and upload it into my google base account. The bottom line is that I need the products to show up in the google product search or shopping results. I need someone who is knowledgable in Google API who can get this job done super fast. The API allows you to programmatically manage your Google Base content. Use it to post new items, edit existing items, or delete items. We are managing a large number of items, for an online store. Need someone who is advanced in Google Base data API, and who can sucessfully create a data feed and suggest the best way to go about this , and include all the attributes that must be included in any data feed, because if any items are missing these attributes will not be processed.