UIUC isn't that selective. Note that the ranking was for the graduate level studies. UIUC focus's more on its grad students, from what I hear.
THe undergrad program is very good, but not the best. I was accepted but chose to attend Rice University for undergrad. If I go to grad school it will probably be Carnegie Mellon (Robotics mecca of the world baby!)
for what its worth, my stats were gpa (unweighted) aroun 3.75, mostly honors/AP classes (so a weight would have boosted it signifigantly). 1530 SAT (780 math, 750 verbal). I think two thinks that helped my app were 2 years as lead design on our FIRST robotics team, and 4 years of chinese (I'm a mutt of various European cultures, btw. and being male, middle class, and white makes it harder for me to get into school than lotsa kids. Being asian probably makes it even harder for you, asians are already very overrepresented at universities, and there is some ridiculous drive to make the racial proportions at universities reflect that of the population. Its nonsense, take the kids who deserve it. College addmission should be color blind. But thats just my opinion).
yeah, Rice is a better undergrad program, Our grad school, however, doesn't get as much focus or money so it doesn't put us on top of any lists.
Anywho, I think you've got a very good shot at UIUC. With those grades, especially the upward trend over the last couple years, and high SAT's (1430 is probably well above the mean at UIUC's engineering school), a few extracurriculars, and whatnot, you should get in no problem.