Actually it's not stupid. Right now Ray Rice is looking at most likely being, at best, the 6th RB taken behind McFadden, Mendenhall, Jones, Stewart and most likely Johnson and/or Charles. Here are the draft positions for the 5th, 6th and 7th RBs taken for the past 5 years.
2007
5. 2 - 20th
6. 2 - 31st
7. 3 - 7th
2006
5. 2 - 13th
6. 2 - 28th
7. 3 - 10th
2005
5. 2 - 22nd
6. 3 - 1st
7. 3 - 9th
2004
5. 2 - 11th
6. 2 - 23rd
7. 4 - 23rd
2003
5. 3 - 29th
6. 3 - 32nd
7. 4 - 2nd
The odds are pretty good that he'll be there at our pick in the second round. Now if you think he'll be the 5th RB taken then trade out of the first, or if you think he'll be the 6th RB and you want to ensure you can get him then trade up with your second for an earlier pick. But Ray Rice is absolutely not good value in Rd 1, the draft is too deep at RB to make a reach like that.