After touch and go SR22 pilot was instructed to make left traffic to avoid slower Cessna in right traffic and to remain below 100 KTS. Both aircraft turn base at the same time from opposite sides and the Tower advised the SR22 pilot of the traffic and that he is number 2. Evasive action was required by the SR22 pilot.

Narrative

I was on an IFR flight to FRG. Cleared for the RNAV14 approach by N90 Approach. Checked in with FRG Tower and requested a touch and go following the approach. Was told to make right traffic following touch and go. When I was approximately 3 to 4 miles out on the RNAV14; a Cessna 150/152 was given clearance to takeoff from Runway 14. On climb out from the touch and go; separation from the Cessna ahead was becoming a factor; but I kept him in sight and began my right turn to crosswind. Tower then directed me to reverse my turn and make left traffic. While on left downwind; Tower asked to keep my speed below 100 KTS. I complied. I was not aware of any other traffic in the VFR pattern at the time; but there was another aircraft about to depart from Runway 14. Once I was established on left base to Runway 14; Tower advised that my traffic was on a right base to Runway 14; and that I was number 2. I got a visual on the traffic at 12 o'clock; banked right; turning back toward the (left) downwind track; and climbed approximately 200 FT. Moments later Tower directed that I fly an extended downwind and he would call my base turn. Both aircraft involved landed uneventfully. I called the Tower via telephone after landing to discuss the incident. For the return trip; I switched seats with my flying partner and was now the pilot monitoring/operating the radios. The Tower Controller from the above incident was now working Clearance Delivery and Ground Control. We were given instructions to taxi from the FBO ramp to Runway 14 via Taxiways Bravo and Alpha. As we began our taxi to join Bravo Taxiway from the ramp; we stopped because a helicopter was hover taxiing down Bravo and was about to cross our path. Moments later; Ground called and told us to hold our position and give way to the helicopter. We held our position as the helicopter climbed and hover taxied directly over us.