Paul R is correct.Cheapest high deiftinion/standard deiftinion switchable and 24p would be the Canon HV30/HV40. Small lenses are not interchangeable , but there are option lens add-ons for wide angle and tele lenses and it has a single imaging chip (CMOS).Next worthy of mention might be the Panasonic AG-HVX200 Does all but the interchangeable lenses. The Sony HVR-Z1 is in this environment. Neither meet your budget.The Canon XLH series and Sony HVR-Z7 meet all your requirements and are about 5x more than your budget.
Paul R is correct.Cheapest high deiftinion/standard deiftinion switchable and 24p would be the Canon HV30/HV40. Small lenses are not interchangeable , but there are option lens add-ons for wide angle and tele lenses and it has a single imaging chip (CMOS).Next worthy of mention might be the Panasonic AG-HVX200 Does all but the interchangeable lenses. The Sony HVR-Z1 is in this environment. Neither meet your budget.The Canon XLH series and Sony HVR-Z7 meet all your requirements and are about 5x more than your budget.