I'm quite small and not hugely strong, I also have a limited amount of money and I can't decide which kite. Any suggestions?
Thanks

Tell us your weight an wind conditions

My first inclination would be to go for a Beamer over an alpha... I can tell you that Beamers are great starter kite from experience, but I can't say much about alpha,... I understand its REALLY tame, so you may tire of it quickly.

Also check out the PKD Buster Soulfly, I believe it's a bit more affordable than HQ products and still with great quality.

Try to get a 3m if you can.

But if $$ is your issue, check the for sale section and see if you can buy used in a 3m size. 3m has a little more of a versatile size than 2m and used gear on here is great: much better prices and usually well taken care of. Plus you don't feel as bad beating up a used kite as you do a nice crispy new one. 3 of my 5 kites are used and all in great shape.

Oops double post

Beamer for sure..

3m Beamer IV for $150... Looks good:
http://www.powerkiteforum.com/viewthread.php?tid=26426

Another 3m Beamer (not sure what mark) for $200 (just click the link in the thread):
http://www.powerkiteforum.com/viewthread.php?tid=26400

Big Kid Kites (US rep for PKD) buster Soulfly 3.3m for $180 (NEW!)
http://www.pkdkitesusa.com/products/Buster-Soulfly.html