Recif, you have a difficult wish list. Match the VX2100 in low light, HD resolution, HD monitor housing and cheaper than the FX7. This is not going to happen with the current camcorders.
The VX2100 has awesome low light capabilities like you mentioned. Wedding videographer's loved it because of that. When HD camcorders came out the wedding guys kept waiting and waiting for the HD equivalent that met the low light of the VX2100. That didn't happen until the Sony EX1 and it came with a huge price increase. If the FX7 his too expensive for you, you can forget about finding a camcorder to match the low light of the VX2100.
Speaking about expense, what is your budget ? It would probably be easier for people to make recommendations if they knew what your money limit is.
The VX2100 has awesome low light capabilities like you mentioned. Wedding videographer's loved it because of that. When HD camcorders came out the wedding guys kept waiting and waiting for the HD equivalent that met the low light of the VX2100. That didn't happen until the Sony EX1 and it came with a huge price increase. If the FX7 his too expensive for you, you can forget about finding a camcorder to match the low light of the VX2100.
Speaking about expense, what is your budget ? It would probably be easier for people to make recommendations if they knew what your money limit is.