First of all, I have to express my happiness for finding this board. I have read tons of first hand user info that has been really helpful. i have always had guns (1911's mostly) and have always had the interest in the subject, but have found myself in a major acquisition mode recently--and more 1911's isn't really what i had in mind.
that being said...viva la H&K!!!
i like the "black gun" concept and as such started to gravitate toward Glock. They seam to be very popular and well liked, but in the back of my mind I always had a nagging worry about their safety system. The drop safety is a good thing, but i like an old school safety switch. If i am carrying condition 1, I could accidentally have an ND by inadvertently grabbing the trigger on a Glock...and that would be bad. What i love about H&K is that they have everything that is good about Glocks AND everything that is good about 1911's. Plus, they seem to be quite accurate and reliable. Then as an additional perk, they have that cool european, INTERPOL-esque quality that Glocks don't have.
anyway, thanks for all the good info, my USP45 should be here in a day or so.