Hi !(ハイ!)
I'm sizuko (ワタシハ(wa)、シズコ デス)
I ate udon noodles for lunch today. (ワタシハ(wa)、キョウ、オヒルゴハンニ、ウドンヲ、タベマシタ)
Have you ever eaten udon noodles ? (アナタハ(wa)、イママデ、ウドンヲ、タベタコトアリマスカ?)
There's this great kanji dictionary I use as well, it turns it all into furigana for you, if that will be helpful. I agree with AJ, reading manga helps a lot, especially because it comes with pictures. Also, flashcards! Make flashcards of every new word and go over them every now and then, it really helps.
Kanji website: http://nihongo.j-talk.com/kanji/