I have never bought struts before but I need new ones on my 95 Riv and want to buy Monroes, will the cheaper Monroe-Matics be good enough or should I go with the more expensive Sense-a-Trac struts?

I wouldn't use Monroe period, my experience KYB is a better strut. You will get lots of opinions on this one.

Thanks Max, are those KYB struts the GR-2 and do they come with all the parts I need to replace my old ones?

They make a couple of different performance struts pick the one suited for your driving, no strut mounts are included remember.