I don’t think I would ever recommend to anyone to get any GT version card to run a program like MB. It’s too low end and if you want to design higher end models in a program such as MB you certainly need more power.
Do you need a Quadro? Who knows as I have personally never used one but I will get one as my next video card upgrade. At this point I do much more 3D work and far less gaming than I use to. I do have an 8800 Ultra which blows away anything I throw at it and MB runs fantastic. But I am curious as to how a top end Quadro will run compared to the 8800. I don’t know but I do want to compare it.
A lot of the reading I’ve done says that there is a noticeable difference with a Quadro but it’s gonna depend on your budget. If you’re a student then I would stick with what you have and not take a loan out to cover the cost if your unsure of the performance. These cards are more suited for professionals in the field than for us poor students. 
After graduation, get a job, make some money and then look at buying higher end parts for your PC. 
I’d vote for the cheaper card.