I need to transfer large files from work and other places (not official stuff of course, mpgs, stuff like that), so decided to buy a large memory card for my phone, as I could also use it to store music, shoot long videos etc. As drivers need to be installed, I also decided to buy a memory card reader so I can transfer without installing anything. I had a 2 GB (or larger) card in mind. When I went to the dealer, he told me that a k750i does not support large memory cards like 4GB. It will support 2GB but the phone will be very sluggish, to the point of being unusable, will support 1GB but the phone will still be very very slow. So I now have a whole slew of questions: 1. What is the maximum memory card size k750i will support, even if very sluggish. 2. What is meant by the phone being very sluggish? Will it only be accessing files that will be slow, or will all uses, like reading or writing sms also be slow with a large memory card? 3. Will the phone be sluggish only when there is a lot of stuff stored on the memory card, or will it be slow even when the card is empty? 4. If the phone will indeed be very slow, what is the largest practical memory card size the phone will support? 5. Who would be a good dealer in Chennai (perhaps Ritchie street) to buy memory cards/card reader/pen drives from? I asked in a few of the larger stores, prices quoted were 800 bucks for a card reader! I don't want to spend more on the memory card than an iPod. 6. Most important question of all, is it possible to use the memory card in the phone for transfering files - zip, mpg, jpg, etc., and (shudder) even work related DOC, XLS, PPT files? Note: I will not be transferring copyright files like mp3s. Is this asking too much of the phone, or will I have to go for a pen drive? I don't want to buy a pen drive as my pockets are not deep enough to buy a seperate phone, mp3 player and pen drive. More to the point, they are not large enough to carry all that so I thought I would go for a one-size-fits-all solution. I don't browse the net or play games on my phone. I use it as a camera, alarm clock, task scheduler, occasional music player and large doses of sms. Sometimes I make or receive calls so will a sluggish phone really be an issue for me? My apologies for the long question. And thanks for all the help.