Thank you everyone, I had a really great night! (besides scraping the plastic part on the front of my car getting over a gutter back onto the road, then stalling, then beeping my horn by accident and stopping to pull stick out from underneath my car...so embarrasing and yet absolutely hilarious once we made a quick getaway)
I almost felt like I was back at school again in the Astronomy Club and not knowing how to find anything and only really knowing some basic sky objects but it was still a load of fun. Met a heap of really nice people and it was my third time using my friend's 10" Dobsonian.
In her telescope I managed to find Venus, Saturn and Mars. I also had a look at Alpha Centauri, M7 and NGC 4755 (Jewel Box Cluster). My friend found M6 (Butterfly Cluster), Omega Centauri and M22.
We had a look at some other objects through another person's telescope (I think it was a Black Diamond 200mm reflector on an EQ5 mount). We saw a blue planetary nebula (NGC 3918), the Sombrero Galaxy and the Lagoon Nebula. It was absolutely breathtaking, especially the blue planetary nebula!! I attempted to find Omega Centauri and failed miserably even though I could see it with the naked eye! I just couldn't find it and only succeeded in finding it when my friend found it then pushed the telescope away from it but I think it was still in the general vicinity. It's all a learning curve though, I know one day I'll find it by myself