Motorcycle Trailer on SVX

Hi guys!

I'm planning on getting a motorcycle in Jan of February and, of course, I'm planning on keeping my SVX forever! So, to make things compatible I may have to buy a motorcycle trailer for the car... I saw some on the net that weigh only 200 to 300lb. Adding the bike and some more crap on top I'd be pulling about 600-700 lb. Is this going to destroy my car? Is it possible at all??? I'm planning a drive form Seattle to Florida
if I get accepted in grad school. That's a 3500 mile drive I'll be doing over a week.

Here are the two trailers I'm considering...

http://www.discount-trailers.com/sin...le_trailer.htm


http://www.discount-trailers.com/fra...le_trailer.htm

Any feedback is welcome. Thanks!

Nick