IT Reimbursement

#1
We just stepped into 2011 - 2012 Financial year and hence comes requirement to invest in some tax saving schemes. I found below are the areas we can invest for same -

Insurance
Pension Plans
Mutual Funds
Medical (covered by my company well enough)
Tax Saving schemes
and others

Can anyone please guide me which schemes I should choose - I have plans to invest @ 10,000 per month so a total of Rs 1,20,000 this year. Note that this amount goes off directly as part of my salary so I will not able to invest lump sum- however would love to hear options. Secondly, should I go for long / short term investment?

I also have PAN cards for my children. So should I make investment on their name? Can I avail tax benefit then too?

BTW what does housing loan benefits me on my tax calculation? I stay in a rented flat and have purchased another in the same town. So will I get a rebate on the principal amount paid to bank as EMI for a year (my concern is the flat I purchased and stay are in one location)

Thanks in advance