SIP MF for the period of 2 years for 2000?

i want to invest some little money and planning to go for SIP MF for the period of 2 years for 2000 pm. so i want to ask that is it the righ time to go for SIP. i m planning to invest in HDFC and IDFC 1000 pm each. for 2 yrs and apart from this i have a SIP if 40000(total) for tax savings for 6 months