Vellum/Concepts Unlimited to VW Mechanical? in Machine Design Posted February 21, 2005 Yeah, it's really great. I was looking into financing a purchase of SW before stumbling into Alibre. It performs as advertised at about 20% of the cost of SW & Inventor. The support is quite good as well. My first weekend of using the software I had an issue and posted a question to their user forum. I got a phone call 1 hour later from one of the engineer's who saw my post. He called from home, on a Saturday. I was stunned! Alibre, like other MCAD packages, does require quite a bit of computer muscle to run well (fast processor, 1 Gig of RAM, fast video card, etc.) so I wouldn't run it with VPC. Like you, I really enjoy my Mac, and now it runs quite nicely right next to my Athlon PC For me, it was worth $500 of computer to be able to run the software. Best of luck!