I can't talk from experience (PG with first and finish Uni this year if all goes well) but one of my best friends is doing nursing and has twins. She started Uni when the girls were about 3 months old. Nic managed really well for the first two years with help from her DH and friends. But half way through 2nd year decided to move back to SA so her family could help her out as she was finding it hard with the girls and full time Uni. She's now studying part time and her family help her out with the girls (who are almost 3 - where does the time go?). Nic always told me the trick was just to balance it all and work out what was important. We study by distance ed so it's a bit different I guess but she did her Uni work when the girls were asleep or out. DH looked after the girls when he got home so she could cook but he helped with cooking and cleaning too. Nic has always done really well, I don't think she's gotten below a credit for anything. So it can be done, you just need to try and balance it out. And don't be afraid to call on friends and family to help out!

Good luck with your decision!

MG