Wow! Thanks for all those responses.
Since I would like to restrict upgrade to just one component, I could either go for a better speaker (i.e., Lorelei for Tablettes) which is the more expensive option driven by my present integrated amp, or change my amp, the khartago for the AA Cento primo, which would be a more economical option. The pre is built by Lyrita (a one man operation in delhi}and I dont know how it compares with the Odyssey gear, but since I already have it, me thinks I will try out the latter option. This way I can get the best out of my existing speakers amplification wise. In my 'next birth' then I can perhaps upgrade my speakers
As for SETs, I am personally of the viewthey should have nothing less than 93 db sentivity speakers or higher, and my guess also is that while the Lorelies may work well within a certain range they would not be at their best.
Have sent price queries to the odyssey dealer (ARN Systems) in Bangalore and a telephone call but no quotes have arrived yet. I only hope the prices are not very much higher than the ones indicated on the net. If the Khartago is priced right, then certainly I would audition it on my next visit to Bangalore.