I don't have the extension tube, but I have been thinking of picking it up. I'll have to look into the 200mm, but I'm thinking that I'll pick up either a 24 or 28mm lense first. I like the 55mm field of view for most things, but I've found myself wishing I had a wide angle on a few occasions.

On another note I'm rather indifferent wether Lomo picks up Kodak emulsions or not, but I would love them forever if they picked up the Efke equipment and emulsions. Just my luck buying five rolls of Adox chs 25 a week before they announce discontinuation......