hello gurus and newbies alike... i've decided on getting a 35mm prime lens for my D5000, but am confused on wether to have the f1.8 AF-s DX or the f2 AF-D. i know the AF-D won't AF on my cam but it's ok with me, i've used the 50mm f1.8 AF-D before (just sold it coz i find it too tight). anyways, performance wise... which is which between these two 35's? price wise... which one is well worth it? am gonna use it for close up shots. anybody who have tried these lenses, please do share your opinion and suggestions, thank you very much!