I would suggest getting a cable. IR is very slow and bluetooth can also be slow on older models. As for a card reader, it works well but you cannot use Nokia PC suite then, it's purely for transfering files, and I'm guessing that on that model you will have to take your phone apart each time you want to transfer something.
I used a cable for my 6230 and on my newer 6233 I switch between cable and Bluetooth, whatever is available. You need a DKU-2 cable for that phone and these are usually available from phone shops or through the internet, depending on your preference. The 'official' Nokia cable can be quite costly but 'no name' replacement cables work just as well.