hello, i am new to the forum and i wanted to ask some more experienced and knowledgeable members for some advice. i recently purchased my first dslr which is the rebel xti along with the 18-55mm kit lens and i am already contemplating purchasing a new lens to compliment the 18-55. i have been reading some lens reviews and i was considering the canon 50mm ef f/1.8 (largely due to the value). can anyone recommend this lens or another one within a reasonable price range for a beginner like myself? i was thinking a prime lens would be a good second lens but i haven't really decided yet. any help would be appreciated. thanks.