This brings backs memories: Your Move from Yu-Gi-Oh, along with Game On! from Yu-Gi-Oh GX. Man, I miss being a kid. Ah, Digimon... The English opening is nostalgic.
I don't care what you say about Engrish, but Beat Crusader's Tonight, Tonight, Tonight is freaking awesome; the fourth opening for Bleach. Kelun's Chu-Bura is great as well; eight opening for Bleach. Bleach has a good track record on music, especially it's openings. Although I prefer the female vocals version of UVERworld's D-technolife; second opening for Bleach. Also, L'Arc En Ciel's Ready Steady Go!; Full Metal Alchemist 2003's opening. I was tempted, and I can't resist no longer: Mikansei Stride, the second opening from Hyouka; I really love the song. This leads to the Curry Song (Curry no Uta) from Minami-ke Okaeri; it's a cute song. Which leads to Neguse, the ending song, from Tamako Market; something about it having "choppy" vocals makes it sweet, I guess. Don't ask about this one: Eien no Inori wo Sasagete from Yami to Boushi to Hon no Tabibito - just enjoy the song... It's a sad anime with a sad song that's so beautiful...