Best Fixed Rate Cash Isa

I want to know which species will be ISA for me the best interest accumulated in 12 months time if I invest £ 3,600 in April. I already have two cash ISAs that I understand that I can transfer the cash ISA I open in April and the £ 3,600 I would like to use to open this (in fact I'll then £ 10.800 in cash ISA) . My bank offered me an interest rate one year fixed 3%, am I likely to be able to do better than this for a period.Advice 12 months are welcome

I myself was looking for a better ISA. I found:

NatWest e-ISA 3.51% (you can transfer your ISA to them)

Natwest Cash ISA 3.51% also offer More

Barclays 3.61% (you can not transfer your ISA)

These are the best on the market yet. However, these rates are variable and may change. So I guess 3% target is not too bad.

HSBC offer 3.1% fixed.

NatWest offer 3.51% http://www.natwest.com/personal/savings/ ...

what I suggest is to go to your bank and ask Somone to give you advice

As you probably know, interest rates are low now, and will for some time. 3% is better than most on offer. You should always monitor your investments, like other providers can offer better rates in the future.
http://www.thisismoney.co.uk/isa-advice