vTiger to Sugar CRM migration

We are currently running vtiger CRM and we want to migrate quickly to SugarCRM. Both are alreayd installed on a VPS in the US. We are looking for someone with vTiger and/or Sugar experience, who could do the migration from the vtiger DB to the sugar DB. We have about 5000 accounts and 8000 contacts in the database. The following modules need to be carried over: contacts, accounts, e-mails, activities, potentials. Optional job: we also have some datas stored in XML files (from an earlier CRM applicaiton called Goldmine). Some of this content had not yet been imported in vTiger. It would be usefull (but not mandatory) to move this XML content straight to Sugar.