Since it has a firewire port you could try something like the Maxell iVDR VC102 to record to a hard drive instead of tape. They are not cheap and you can expect to pay $600+ for one. Other options would be the Datavideo DN-60 Digital CF Card Recorder or the Shining Technology's CitiDISK CFR or the Sony HVR-DR60.
Lenses:
VCL-HG0737K - Wide Angle Conversion Lens
Since the filter thread is 37mm you could look for conversion or converter lenses with a 37mm thread.