Salesforce.com Customization and Performance Dashboards

Looking for a freelance developer that has experience with salesforce.com. Various customization needed, dashboards, reports, formula fields created for tracking call and task activities and sum up values from fields in custom objects. Only people with deep [login to view URL] experience need apply. We are looking to pay a reasonable hourly rate on the basis of establishing an ongoing relationship with a part-time based freelance person that could undertake some customization projects for our [login to view URL] portal over a period of some months. The work could take place any time weekdays, evenings or weekends. Please quote [login to view URL] basis.