MAGENTO BULK IMPORT 5000 PRODUCTS FROM CSV

Looking for a Magento expert that can help us import around 5000 products from CSV. Originally we posted a project looking for someone to do the data mining and the importing, but found it was better to separate the projects. This project shall include; *Coordinating with the script expert (data miner) to instruct how the CSV file should be best formatted *There are (2) csv files, one with approx 3800 products, another with 1200 that need to both be imported into our magento site *Must import all the important product information, such as name, short and long description, cost price, retail (reference) price, weights, product SKU, item #, inventory status (in-stock, out-of-stock), reference category, etc *Should import all images with correct sizes, including thumbnails, no duplicate pictures or stretched/skewed aspect ratios *The 3800 products from the first csv should be assigned new product IDs while maintaining original SKU only visible in admin panel *Other 1200 products SKU can be the same as item # *Products should all be priced at a fixed markup above cost (all products are same markup) *Products should all be setup with our tiered pricing (all products use the same tiered pricing and we have a % discount extension, so this is easy) Also should include instructions on how to update inventory status from csv files daily Please email with any questions and look forward to your proposals! Thanks Allan